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Ovulation calendar for calculating favorable days of conception. Calculate ovulation calendar for conception: online calculator for free

Ovulation is the release of mature eggs from a woman's ovary. After leaving the ovary, the egg is able to fertilize in the period from 12 to 24 hours, in contrast, by the way, from the sperm, which lives for 3-5 days. Therefore, if you want to get pregnant, it is important to understand exactly when ovulation occurs in order to plan for conception for the "fertile period" (days favorable for conception).

How do you know when ovulation occurs?

To calculate ovulation, 14 days are subtracted from the time of a woman's monthly menstrual cycle (usually 28 days) (i.e., the duration of the luteal phase). For example, if your cycle is 29 days, then you will most likely ovulate on day 15 of your cycle. If you have a 24-day menstrual cycle, then expect ovulation on day 10.

Unfortunately, this method won't help if you don't have a regular monthly cycle. Therefore, if you have problems determining the date of ovulation, visit your doctor, who will give advice specifically for your case.

Measure your basal temperature with a menstrual chart

In determining the day of ovulation, measuring the basal temperature will also be very useful. To do this, you will need a basal temperature table, which you can download and print at the following link:

When completed, it looks like this:

Determining the day of ovulation from the completed menstrual table is not difficult. Usually, right before ovulation, the temperature drops slightly, and then, on the contrary, rises, and remains so until the end of the menstrual cycle. The use of this method comes down to measuring the temperature for 2 months, after which it becomes possible to calculate the approximate date of the next ovulation, and then schedule sex 2-3 days before it.

Basic rules for measuring basal temperature:

  • Measure the temperature every morning at the same time (+/- 30 minutes).
  • It is not recommended to get up, sit down, walk or even go to the toilet before taking the temperature. At the same minute after waking up, take the thermometer in your hands.
  • Use the same thermometer. If you bought a new one, measure it at the start of your next menstrual cycle.

Watch for other "cues" in your body

On the day of ovulation, you may experience discomfort or mild abdominal pain that lasts for several hours. In general, some women easily determine their ovulation, while others are not even aware of it.

  • Have sex more often. The best chance of conceiving is by having sex 1-2 days before ovulation, however, the cycle may not be regular and you may well "miss". Sperm can survive in a woman's body for up to 5 days, so to get pregnant, have sex daily, starting 3 days before ovulation and 2-3 days after.
  • Don't rush to the bathroom after sex. Lie in bed for a few minutes after intercourse.
  • Do not use artificial lubricants, vaginal sprays, perfumed tampons, or douches. They can disrupt the normal acidity of the vagina.
  • Reduce your stress levels. Studies have shown that high levels of stress can interfere with conception. We do not advise you to quit your job or make major changes in your life. Simple things like taking a walk in the park, exercising, or cuddling with a loved one can help reduce stress.
  • Try to maintain a healthy weight. Experts also advise to monitor your own, since being underweight or vice versa - being overweight can lead to impaired ovulation, as well as negatively affect the body's production of key reproductive hormones.
  • Do you want a boy or a girl? Unfortunately, there is no natural way to choose the sex of the unborn child, but scientists have found that the sperm of the "female sex" live on average longer than the "male" ones. Therefore, in order to conceive a boy, plan sexual intercourse as close as possible to the time of ovulation, if a girl, then on the contrary, schedule sex 3-4 days before ovulation, then there will be more "female" sperm around the egg, and accordingly the chances of conceiving a girl will be higher. For more information on how to plan a baby's gender by calculating the day of ovulation, read the article:

Any woman needs to listen to her body. Conception of a child is a delicate matter, and it can take a long time before this happens. Today we will talk about egg maturation. And for starters, you should definitely find out what an ovulation calculator is.

Why does a woman need to know when an egg is maturing?

Every teenage girl gets her period. This usually happens at the age of 13-15. This serves as a signal that ovulation will occur in the body every month. The calculation of ovulation needs to be done only in some cases, but in principle, any woman should know when this process occurs and how long it takes. On ovulation days, the body works differently, which can even cause mood changes.

How to calculate ovulation in a woman?

There are several ways to calculate ovulation days. An online calculator is considered the most convenient. There is such a calculator on our site. The calculation is quite simple. To find out when the egg is ripe, you need to count how many critical days last and what time they usually go.

If a girl is healthy, it is usually very easy to count the days of ovulation, since menstruation occurs regularly in the same period. With an irregular cycle, things are not so simple. You can try using an online calculator, but it is worth noting that if the cycle is unstable, there may be a large error. It is not easy to calculate maturation in such a situation, and doctors usually prescribe other special procedures.

The days of ovulation on this cycle are best determined with medical tests. The pharmacy nowadays has special tests to determine ovulation. They work in the same way as pregnancy tests. Throughout the entire cycle, you will need to carry out a test every day, when it shows two strips, this means that the maturation of the egg has come.

Another way to determine the days of ovulation is to do an ultrasound. Usually, with an irregular cycle, it is in this way that it is determined when the egg is mature. It should be noted that it is rather difficult to calculate the date in the usual way. This procedure is most often prescribed when a woman wants to become pregnant.

Why do you need to calculate the maturation of the egg?

When this process occurs, you need to know for several reasons:

  1. If you know when you will ovulate, you can calculate conditionally safe days. These are the days when you can have sex with your partner without protective equipment without risking getting pregnant. It is possible to determine these days only by knowing exactly when the egg is maturing, since on the days of maturation, the most likely is to get pregnant.
  2. The second reason you need to know the days of ovulation is because you want to get pregnant. Many girls face a problem when the desired pregnancy does not come for a long time. This may be because the wrong days were selected for the attempts to conceive. It is necessary to enter into sexual relations on the days of ovulation, then the likelihood of getting pregnant is much greater.

If you have a stable cycle, determining the maturation of an egg is easy. Our calculator will help you calculate everything correctly. It should be noted that in addition to being very useful, such a calculator can be used for free.

And if everything goes well, we have special calculators that help you calculate the date of birth. To use it, you need to know the gestational age, the date of the last critical days, which will help to calculate ovulation and find out when the baby will be born.

The vast majority of women are aware of such a concept as ovulation. But not everyone knows how to calculate the date of its occurrence. There are several ways to help you find out the cherished date in each new menstrual cycle. However, the easiest way to do this is using the ovulation calculator: it is better to calculate the most suitable days for conception with its help.

To get the result, you must enter the date of the first day of the last menstruation, the duration of the menstrual cycle and bleeding. You also need to indicate how much time the calculation is needed. Once the data is provided, you will be able to see a graph showing the estimated timing of your period and fertile days.

Decoding the result:

Days of menstruation

- Ovulation

Fertile days

Hello dear blog readers. If some of you do not fully understand, why do this at all? I explain. The fact is that for fertilization, this process plays an almost dominant role. Knowing the date of maturation of the egg is necessary in order to effectively protect against unwanted pregnancy, or to get it, this pregnancy. However, “just results” are often not enough. That is why we will analyze in detail why and when the egg leaves the ovary, how to calculate ovulation accurately using different methods.

Physiological aspects

Ovulation is the release of a mature egg from the ovary. This happens under the influence of neuroendocrine mechanisms of different levels. This term means that nerve impulses and hormones play a role in this. Without going into details, let's look at what happens in the body.

The menstrual cycle is counted from the first day of the previous one to the beginning of the next menstruation. As soon as the bleeding ends, the next follicle containing the germ cell begins to mature in the ovary - the follicular phase of the ovarian cycle starts. Gradually, with the development of the egg, the level of sex hormones rises.

By the time of the final maturation of the follicular formation in the female body, there is a peak level of estradiol (the most active subspecies of estrogen). When this value is reached, the walls of the follicle begin to collapse - the ovulatory process starts, triggering the luteal phase. As soon as the reproductive cell was "free", it goes into the fallopian tube, where it is able to live for 24 hours, waiting for its sperm.

In place of the torn "receptacle" of the reproductive cell, the corpus luteum ripens - this is, relatively speaking, the "yolk" that will feed the fetus until the placenta is formed. If conception did not take place, then the egg dies, and the corpus luteum regresses as unnecessary. Throughout the entire period of its "life", it produced the hormone progesterone, which is designed to help the fertilized egg to implant (penetrate) into the wall of the uterus. It softens the endometrium (the inner lining of the uterus), makes it friable, improves blood circulation. But with the regression of the corpus luteum, this hormone becomes less and less. And the loosened epithelium can no longer become "taut" again. Therefore, as soon as the level of progesterone decreases critically, and the level of estrogen increases, the next menstrual bleeding begins - the rejection of the uterine epithelium.

So, ovulation is the release of an egg from its "refuge". This "action" occurs approximately in the middle of the cycle (for example, with the duration of the last 28 days - on the 14th day). The release of the germ cell from the follicle can take place on the 13th and 15th day, this is considered the norm. But the fact is that the same corpus luteum always lives only 14 days (rarely ± 48 hours), regardless of the duration of the cycle. This means that if it lasts 35 days, then ovulation will take place on 21 days, and if 22, then on 8. The ovulation calculator can calculate the optimal date for conception based on these data.

But what to do with an irregular cycle? When is one time five weeks between bleeding and another three weeks? In addition, there are such concepts as early and late menstruation, which are abnormalities, but are common. How to understand when a favorable time for the start of pregnancy begins?

Calculating the ovulatory date

There are many methods to help find out exactly when the germ cell will mature and come out. Among them:

  • an online ovulation calculator (calculating a suitable date for conception is easiest and fastest), in fact, repeats the calendar method;
  • temperature method;
  • cervical method;
  • symptothermal way;
  • by ultrasound.

Test methods:

  • test strips;
  • inkjet tests;
  • using a microscope;
  • fern method.

It should be noted that in order to achieve the reliability of any of the listed methods, it is necessary to carry out measurements for at least 5-6 cycles. You can compare what data the calculator provides and how the body actually behaves.

Calendar method

Basically, it has already been described in the previous section. It can only be used by those women who can boast of their period "just on schedule."

Observation must be carried out for 6 "circles". It is necessary to keep a menstrual calendar, clearly marking the dates of the beginning and end of bleeding. For the analysis you need:

  1. Identify the longest cycle. You need to subtract 12 from its duration in days. Why this particular number? As already mentioned, the corpus luteum only lives for 14 days. For the reliability of calculations and taking into account possible physiological variations, it is worth slightly "expanding" the possible period of its appearance. This will be the last day in this cycle when conception can take place.
  2. Find the shortest cycle. Subtract 19-20 from the number. The calculation is as follows: for example, the cycle duration is 26. Of these, 14-15 are the luteal phase. This means that ovulation was on the 11th day. However, sperm can live in the vagina for 2-3 days. Thus, starting from 8-9 days and ending 12 are favorable days for conception.

Basal temperature measurement

Basal temperature is the "heating" of the internal organs in a calm state.
It is necessary to measure the temperature:

  • in the rectum (acceptable - in the vagina and mouth);
  • at least 5-7 minutes;
  • daily (including during menstrual bleeding);
  • at the same time;
  • immediately after sleep, which lasted at least 3-5 hours;
  • with the same thermometer.

In the follicular phase of the menstrual cycle, the temperature does not exceed 36.4-36.8 ° C. However, 12-24 hours before the separation of the egg from the follicle, it rises, and sometimes by almost a degree! This occurs to stimulate rupture of the follicular formation. And throughout the postovulatory period, until the first day of the next bleeding, it is kept at the level of 37.1-37.5 ° C. Fertile is the period from the beginning of the cycle to the third day after the temperature jump.

This technique is used more for contraception than for planning a pregnancy. After all, ovulation is often "visible" after the fact, when it happened. And after the third day of the rise in temperature, pregnancy is impossible until the next cycle.

However, it is best to combine the basal temperature measurement method and an ovulation calculator - you can calculate the days for conception more accurately.

Cervical way

The vagina and cervix are very "slimy" organs. The possibility of pregnancy, local immunity, and the state of the mucous membrane depend on the presence of this natural secret. The state of cervical mucus is highly dependent on the level of hormones in the body. The more estrogen, the more fluid the secretion. Immediately after menstruation, it is almost nonexistent, which is unfavorable for sperm. Then it appears, but thick, viscous, like glue. It is inconvenient for male reproductive cells to move along it, they are in it like in a swamp. Gradually, it becomes more liquid, and by the ovulatory moment - watery, slippery, reminiscent of egg white. Here on it they swim straight into the uterus.

Symptothermal method

The most reliable of the above is ... a combination of these methods. If you calculate the time of release of the egg on the calendar, monitor the temperature and the state of mucus for several months, you can learn to determine ovulation almost accurately. Thus, in order to achieve conception, you need to carefully monitor your body.

Ultrasound diagnostics

Ultrasound is one of the key research methods in gynecology. With its help, you can track the process of maturation of the follicle from the very beginning to the release of the egg from it. This is done by a functional diagnostics doctor who records the size of all follicular formations in the ovaries. With the approach of the moment of release of the egg, one of them must increase in order to soon rupture and turn into a corpus luteum.

If the doctor sees that none of the follicles is growing, then he is forced to state anovulatory, "idle" cycle. It is possible to diagnose:

  • hormonal deficiency (education has already developed, and the cell does not leave it);
  • premature hormonal effects (the corpus luteum begins to form even before ovulation);
  • cyst formation (postovulatory follicle growth);
  • and etc.

It should be noted that the calculator is not capable of predicting anovulatory cycles and failures. Therefore, if there are any abnormalities or suspicions of them, it is necessary to be examined using an ultrasound scan.

Test Methods

Similar to tests for determining the level of hCG (pregnancy test), there are test strips for registering luteinizing hormone, which is responsible for ovulation. There are inkjet tests, as well as strips that need to be dipped in urine. They can show one strip (ovulation is "far away"), "one and a half", in the sense - one fuzzy (usually 2 days before and 2 days after the release of the germ cell) and two - "we are here."

To use such strips, the use of the calendar method is mandatory. You must first calculate the average cycle time, find the approximate date of the ovulatory process, count 3 days from it and start testing.

As already mentioned, at the ovulatory moment, the body contains the largest amount of estrogen in the entire cycle. To find out what the content of this hormone is, use the "fern method." It is necessary to apply saliva to the glass. On days when the hormone content is low, as it dries, salt from the liquid is deposited in the form of randomly located points. But with a high level of estrogen (2-3 days before ovulation and 2-3 days after), these points are systematized and resemble a fern leaf.


Photo enlarges when clicked

Today the glass has been replaced by mini microscopes the size of a tube of lipstick. It has an area for applying biological fluid, as well as an eyepiece in which the result is visible. The principle of action is similar to the "fern" one. Interpretation is carried out using control drawings from the instructions.

Thus, you can use anything: ultrasound, test strips, ovulation calculator - calculating suitable days for conception is not a problem. It is useless to argue about which of the listed methods is more accurate: ultrasonic, of course. However, it is less available and requires regular and frequent hospital visits. The test method is only slightly inferior to it. However, it is best to use a combination of several techniques. But what if the cycle "jumps"?

Irregular cycle

How to calculate ovulation with an irregular cycle? It is optimal to use the test method - a mini-microscope. The costs will be minimal (one such device costs about 300-400 rubles), the "equipment" will serve for a long time, and it will be accurate to show ovulation. And if you do research every day, then you can't miss it.

You can also use the cervical method. Cervical mucus is one of the visual indicators of approaching ovulation, and it begins to change a few days before it.

But the temperature and calendar method will not help much, including a calculator, because even if you watch your menstruation for a year, the calendar calculation of the ovulation period will be purely approximate.

Conclusion

Thus, with a regular cycle, the ovulation calculator can calculate the best time for conception, it will be able to "once"! To be sure of the correctness of the calculation, you can repeat it yourself, as well as use other methods. However, if you have any problems with the cycle, suspicion of recurring anovulatory periods, be sure to consult your doctor. I hope that this article was useful to you, and I say goodbye to you until the next useful materials. In order not to miss the weekly newsletter, subscribe in the right pane of the blog.

If you and your loved one decide to have a child, and your sexual intercourse is not constant, the ovulation and conception calendar will help you.

This is such a handy thing that will show on which day you are more likely to start a pregnancy. But before using it, let's figure out what it is and how it works.

The calculator performs simple calculations for the next few months, showing you when the next ovulation occurs, if there are no unforeseen events, illnesses or some abnormalities.

This information is necessary for every woman hoping for an early pregnancy. And a calculator can provide it. Receiving instead of input data the beginning and length of the menstrual cycle, he writes down the entire period in steps.

What is ovulation?

First, we need to understand what ovulation is and how it affects pregnancy.

Ovulation is a special day in your menstrual cycle when the chances of a successful conception are high. How does a child appear? The egg needs to be fertilized.

About a week after the end of menstruation, a new egg has already matured in the woman's body, ready to become an infant. If you fertilize it in time, you will get a fetus. If you do not fertilize, new periods will begin after another week and a half.

But that special period, lasting no more than two days, shows when the uterus is ready to receive the embryo, and the egg is ready to fertilize. Unfortunately, the lifespan of the egg is short - from 12 to 36 hours.

Therefore, it is very important to know exactly when ovulation occurs so as not to miss the right time.

For men, such a calendar is not needed - sperm cells live a long time and are constantly updated. So your partner is ready to conceive a child any day if he wants to.

How to calculate the moment?

It is not necessary to do the calculations yourself. To do this, there are many online programs that allow you to quickly and free of charge calculate the timing of your ovulation.

Such a calculator will save you time and easily tell you when to make your sex life more active in order to start a pregnancy. You will receive a convenient calendar on which everything will be simply and clearly marked.

To calculate the timing of ovulation, you need to know only two things: the days of the beginning of the last and the penultimate menstruation. If the cycle is irregular, it is better to take more dates. See the period in between, you get the cycle length.

If the numbers are different for different months, then we take the latter. It is easy to remember these calculation conditions: a rare woman does not remember when her period began.

When you enter the day of your last period and cycle length into the online calculator, the program will be able to calculate your entire period. The probable day of the next period will be marked in red.

Light green - the middle of the luteal phase. This is the time when the egg appears and develops. These days are the average probability of starting a pregnancy.

The day of ovulation is indicated in green, the highest probability of conceiving a baby. But this does not mean that the calculator is 100% right and that you need to try hard only at this time.

Sometimes the egg is ready and alive a little earlier or a little later. Therefore, the approximate time is the day marked in green, plus or minus another day.

Such an online calendar allows you to know the most successful days for several months in advance. You can print it out and put it on your desk so you can check the dates. In addition, the calendar will remind you of the upcoming period.

Other signs of ovulation

The middle of the cycle is far from the only landmark of a good time for pregnancy. The days when the egg is most ready to fertilize will be slightly different from the rest.

For example, estrogens affect a woman's body even during the development of the egg, even before it is fertilized, before pregnancy begins. And these changes can be tracked:

  • A slightly viscous discharge from the genitals appears. It does not last long, on the strength of a couple of days.
  • On the day of ovulation, the woman's temperature drops slightly. It may not be very noticeable, but if you measure it every day, small deviations will help to calculate the time of ovulation.
  • Slight aching pain, as if you were pulling your abdominals lightly. It does not always appear, but is often a consequence of ongoing ovulation.
  • Increased sexual arousal.

The online calculator will provide you with a calendar that will help you narrow down the time of your greatest activity.

But it has other uses as well. Such a calendar may not be the most accurate, but still a method of contraception.

But remember: there is always the possibility of error, for example with an irregular cycle. The calendar is not ideal for pregnancy.

Many are convinced that conception in relation to ovulation greatly affects the sex of the child. If the child was conceived before ovulation, it will most likely be a girl, and if afterwards, it will be a boy. Believe it or not - it's up to you. However, knowing your cycle will help you a lot.

Ovulation and conception calendar is a versatile and fairly easy-to-use service designed to calculate the menstrual cycle and the most favorable period conceiving a child... Its main purpose is to help a woman identify the days of increased fertility ( ovulation), during which conceiving a child most likely. At the same time, thanks to the calculation of the so-called "safe days", ovulation calendar allows her to avoid unwanted pregnancy without using any medication and mechanical contraception. To take advantage of ovulation calendar and calculate your own menstrual cycle (favorable period conceiving a child), sequentially fill in all the fields of the form below. Registered and authorized users of our Internet portal can save their personal ovulation and conception calendar in the "favorites" section of your personal account and return to it later.


Ovulation calendar and the most favorable days for conceiving a child

Ovulation- This is a process during which a matured and completely ready for the upcoming fertilization egg leaves the ovary, enters the abdominal cavity and then goes into the lumen of the fallopian tube. It was during this period that the probability conceiving a child is the maximum and is estimated at about 33%, which, of course, should be taken into account when calculating ovulation calendar and a woman's planning for an upcoming pregnancy. After ovulation the egg is capable of fertilization ( conception) within 12-24 hours, while sperm after ejaculation retain their activity for 2-3 (and much less often 5-7) days. Given this fact, a woman's ability to get pregnant the day before ovulation equal to approximately 31%, two days before it - 27%, and three and four days before ovulation- 16 and 14%, respectively. In the same time conceiving a child six days before ovulation or the next day after it is unlikely and even practically impossible. Usually ovulation occurs between the 14th and 16th days of the menstrual cycle under the influence of estrogens and pituitary hormones.

Ovulation calendar and a sign of conception

One of the most reliable and important signs of an offensive ovulation and favorable period for conceiving a child are changes in the cervical mucus of a woman. First of all, under the influence of estrogens, there is an increase in the amount of secretions and a decrease in their viscosity. The next, no less important, sign of egg maturation should be considered a decrease in rectal (basal) temperature during ovulation and raising it the next day. Moreover, in order to more accurately calculate ovulation and conception calendar, it is recommended to measure the temperature every morning at the same time for several months. Sometimes in a moment ovulation a woman feels pain in the lower abdomen, the nature of which can vary quite widely from mild and short-term to strong and very long-term. It should also be noted that on days ovulation some women experience a peak in sexual arousal.

Ovulation and conception calendar is a diagram of the menstrual cycle, in which the time of its beginning, end, and also itself ovulation... Full management calendar involves the obligatory fixation of periods of active sexual life in it. Drafting ovulation and conception calendar it is necessary to start long before planning pregnancy in order to learn how to determine the moment as accurately as possible ovulation and get acquainted with all the features of your own body.

Ovulation calendar and conceiving a baby

Depending on the likelihood conceiving a child and time ovulation menstrual cycle ( conception calendar) can be conditionally divided into three phases: relative sterility, fertility and absolute sterility. The period of relative sterility begins from the moment the bloody discharge appears and ends ovulation... During this phase, some difficulties may arise with contraception, since its duration sometimes varies within a few days, even with a stable cycle duration as a whole. This happens due to the fact that periodically, depending on certain factors (external and internal), ovulation comes a little earlier or vice versa later.

The fertility phase starts from the moment ovulation and ends after 48 hours. At this time, the probability conceiving a child as high as possible. As noted above, after leaving the ovary, the egg is capable of fertilization within 12-24 hours, the remaining half of the time is devoted to the inaccuracy of determining the time ovulation... Following a period of increased fertility, a woman enters a phase of absolute sterility, during which conceive a child almost impossible. This period lasts until the end of the menstrual cycle and is about 10-16 days.

Ovulation calendar and calculation of the period of conception of the child

Most modern women are counting ovulation and conception calendar in order to bring the long-awaited motherhood closer. Others build the calendar to protect yourself from unplanned pregnancy. However, whatever goals they pursue, when calculating the menstrual cycle (and ovulation calendar in particular) there is always the possibility of error in any way.

According to the calendar method of calculation ovulation a woman should record the days of the beginning and end of menstrual cycles for at least six months. In order to determine, on the basis of these data, your individual fertile period ( ovulation and conception calendar), it is necessary to subtract 11 from the number of days of the longest of the cycles (the last fertile day of the cycle), and from the number of days of the shortest - 18 (the first fertile day). So, for example, the longest cycle in a woman is 32 days: 32-11 = 21 (the 21st day of the cycle is the last in the fertile phase). Its shortest cycle is 26 days: 26-18 = 8 (8th day is the first in the fertile phase). In this case, the most favorable period for conceiving a child is the interval from the 8th to the 21st day of the cycle (13 days in total).

One of the best and more accurate calculation methods ovulation and conception calendar a child is a combination of the above techniques, which is called the symptothermal method. It includes basal body temperature measurement, daily monitoring of the state of cervical mucus and accurate calculation ovulation calendar and favorable period for conceiving a child by the calendar method.

Action of tests for calculation ovulation calendar is based on the same principle as for the diagnosis of pregnancy. When interacting with a woman's urine, two transverse lines appear on it, one of which indicates the normal performance of the test, and the second, an increase in the level of luteinizing hormone (LH) and the woman's full readiness for conceiving a child... However, if the second line for several cycles in a row remains paler than the control, then this may indicate the absence of ovulation due to any disease (thyroid disease and hyperprolactinemia, obesity and wasting, polycystic ovary syndrome and ifantilism, high FSH and low estradiol levels, chronic stress, etc.) and is the basis for seeking medical attention.