Pregnant mothers can find the correct ovulation period and choose the best time to get pregnant.

There are still many women who do not know how to calculate their ovulation period. Even if they use methods such as basal body temperature testing and vaginal mucus change observation, there are many cases of pregnancy failure during the ovulation period.

According to statistics from American biologists: Even if strong young newlyweds have sex as frequently as possible, their probability of conceiving in each menstrual cycle is only 28%, and the pregnancy rate is very low. .

For couples who want to get pregnant, learning to calculate the ovulation period has become a very important lesson.

1. Menstrual cycle measurement method, this is the simplest method

Method to calculate ovulation period based on menstrual cycle: when menstrual cycle is regular , counting from the first day of the next menstrual period, counting down or subtracting 14 days is the ovulation day. The 5 days before and 4 days after this date are called the ovulation period.

2. Basal body temperature testing method, girls with regular lifestyles should try it

Before ovulation, women are in the follicular phase. At this time, the ovaries secrete estrogen. The body temperature mostly fluctuates below 36.6°C, with the lowest body temperature on the day of ovulation. After ovulation, the remaining follicle cells gradually become luteinized, forming a corpus luteum, and gradually mature. In this way, the change in basal body temperature during a menstrual cycle with ovulation presents a biphasic curve.

If the body temperature rises and falls regularly, the body temperature will be low in the first half of the menstrual cycle, even lower when reaching the ovulation period, and then gradually rise to a peak (0.3 to 0.5°C higher than the basal body temperature) as the corpus luteum matures. , there is a possibility of ovulation. On the 4th day of high temperature, ovulation must have occurred and the egg has died. It is safe to have sexual intercourse from this time until the next menstruation. Some people\’s basal body temperature rises in a stepwise manner and takes several days to reach the peak. This makes it difficult to calculate the specific time of ovulation.

For women who live irregular lives and often work night shifts, I do not recommend using basal body temperature to measure ovulation. Because basal body temperature requires regular and fixed-point testing under a regular lifestyle, it is only an indirect way to estimate ovulation. If the temperature measurement is not accurate, it will be impossible to predict the ovulation date.

The method of measuring body temperature is also a key factor. When the human body is in a state of complete rest and no interference from mental or all objective factors is eliminated, the body temperature measured is called basal body temperature. The most appropriate measurement is when you wake up in the morning before any activity. The specific method is to measure your basal body temperature every morning after waking up, and create a table to record the changes in body temperature. After a cycle, you canDetermine whether you are ovulating from the rising and falling body temperature line, and the day with the lowest body temperature may be the day of ovulation. This testing method requires repeated testing and careful recording of icons and then analysis.

However, due to different individual physiques, body temperature also varies. We can make a body temperature icon for the menstrual cycle. Based on the basal body temperature curve, we can roughly determine our physical condition and whether there is ovulation. If ovulation is normal, the low temperature period and the high temperature period are obvious.

But if the ovarian function is poor, there is no ovulation and no corpus luteum is formed, there will be no progesterone (luteinizing hormone) to affect the temperature regulation center, the basal body temperature will not rise, and the body temperature will continue to be low.

If a woman\’s basal body temperature rises slowly and has not reached above 36.9°C for more than 3 days, this situation is due to the slow and insufficient production of the luteal function of the woman, resulting in a \”climbing\” basal body temperature. If the basal body temperature is high for less than 12 days, the luteal function of women cannot be maintained for enough time, which is often one of the symptoms of low luteal function. On the other hand, if the basal body temperature is uneven during high temperatures and the gap is relatively large, it may be a \”saddle-type\” body temperature caused by insufficient luteal function.

So, through monitoring, you can not only know the ovulation period, but also the quality of the eggs. If you can insist on measuring your basal body temperature while lying still at a fixed point every morning, you can find your ovulation date based on changes in body temperature. It should be noted that an increase in body temperature occurs after ovulation, not a sign before ovulation. Otherwise, the 21-year-old girl would not have been stuck in a wrong cycle for two years. She would have been experiencing an increase in body temperature. I started contraception later, which was obviously too late. Because sperm can survive in the vagina for a period of time, it would be very risky to wait until the body temperature is high before using contraception. The same goes for people who need to get pregnant.

3. The B-ultrasound monitoring method can be said to be the most accurate method

Of all the methods currently known to measure ovulation, it is the most accurate The method is B-ultrasound monitoring. It can not only detect whether there are dominant follicles in the ovaries on both sides, but also measure the size of the dominant follicles, the thickness of the endometrium, etc. But clinically, we generally only use it when the patient really needs it. For example, in some women with ectopic pregnancy, one side of the fallopian tube has been cut off. In this case, if her ovary on the side of the cutout fallopian tube is unable to ovulate, she will not be able to ovulate. If you are pregnant, you can use B-ultrasound to observe which ovary is ovulating. This method is basically not used in normal eugenics clinics because it is not necessary.

Because although B-ultrasound monitoring of eggs is currently the most accurate method, ovulation is only one of the factors for successful conception. Even if it is detected that the egg is mature and about to be released, it does not necessarily guarantee that it will be \”sowed\” at that time. In addition to physical conditions and sperm quality, psychological factors are also likely to affect the pregnancy process.

B-ultrasound monitoring of follicles is also divided into vaginal B-ultrasound and abdominal B-ultrasound, such asIf you have an abdominal B-ultrasound, you need to hold your urine in beforehand. Although B-ultrasound examination to monitor follicles usually only takes a few minutes, current hospitals are basically overcrowded. If you want to monitor follicles, you may have to queue for more than an hour.

Although there are no side effects in using B-ultrasound to monitor eggs, the examination is more complicated than the first two methods. B-ultrasound monitoring of eggs is not just done once. It needs to be done several times a month. Each time, you have to register and queue up. If you become irritable because of this, the quality of the eggs will be poor. At the same time, if you choose abdominal B-ultrasound, frequent urination will also affect the mood of the expectant mother, which will affect the quality of the eggs. The accompanying expectant father will also be affected by this irritable process, which will affect the quality of the sperm. One of the necessary conditions for having good sperm and eggs is to feel comfortable and relaxed, and these are difficult to explain clearly using data or probability. Of course, if other methods still cannot determine the ovulation date, B-ultrasound monitoring of follicles is more practical and safe.

In fact, pregnancy is a natural process. Deliberate human intervention is unscientific. The more anxious you are, the more likely you are not to get pregnant. I still insist that if there are no special reasons, although the B-ultrasound method of monitoring eggs is the most accurate, it still cannot be the must and first choice. If you must choose B-ultrasound to monitor eggs, you should choose a regular hospital and do it under the guidance of a doctor, and it is best to find a regular doctor to monitor. Because when a doctor observes a dominant follicle from a certain angle, it will be better to monitor the development of this follicle from the same angle next time. Different medical institutions and different doctors may have different judgments.

4. The ovulation test paper detection method is very convenient

Follicles are produced under the action of follicle-stimulating hormone (FSH) and luteinizing hormone (LH). Developed and mature. There is a peak of LH in the 24 hours before ovulation. Therefore, we use ovulation test strips to detect this peak. If you compare the test paper and find that the ovulation test paper begins to weaken and weakens rapidly, it means that ovulation is about to occur, and you can arrange intercourse. Generally, strong Yang will last for 2 days, and 24 to 48 hours after the ovulation test paper weakens is generally the time range for ovulation.

There are instructions on the back of the test paper package. You should read the instructions carefully before use and follow the instructions strictly to minimize errors.

But it should be noted that when two lines (i.e. positive) appear, it does not necessarily mean ovulation. There are also weak yang and strong yang. Only when strong yang appears (i.e. the two lines are the same color) (or the detection line is deeper than the control line), it indicates that ovulation will occur within 24 to 48 hours. Therefore, when strong Yang occurs, test twice or more than twice a day. If the color starts to get lighter, then the previous measurement was the peak.

The specific test method, unlike early pregnancy test strips, is that morning urine cannot be used, and urine samples at the same time every day should be used as much as possible. Water intake should be reduced 2 hours before collecting urine, because diluted urine This will also hinder the detection of LH peaks. for menstruationFor women with regular cycles, the test should be done 14 days before menstruation (that is, the expected ovulation time), 3 days before and 3 days after this time, for 6 consecutive days; if menstruation is abnormal, usually after the end of menstruation Start testing on the 3rd day. Of course, the test results can be referred to the diagrams in the instruction manual.

It should be reminded that this is a standard physiological phenomenon when ovulation occurs. Although the test strips are easy to use, due to the production process and the self-testers themselves, the accuracy rate is only about 75%. In addition, the test results are not simply \”yes\” or \”no\”. Some people may have strong Yang for several days in a row, so ovulation may occur (usually after the strong Yang on the last day), or there may not be ovulation at all. Ovulation is a complex physiological process. Sometimes the occurrence of LH peak does not necessarily mean the normal formation of corpus luteum after ovulation. If the LH peak is measured and intercourse is normal, but you are still not pregnant after 3 months, you must go to the hospital to consult a relevant doctor and undergo relevant examinations if necessary.

It is worth noting that normal levels of human homologous hormones hTSH and hFSH have no interference with this test strip, but HCG in urine will interfere with the test results of the test strip, so this test strip is not suitable for use For pregnant women, if you find that LH peaks occur for several days, you should first test whether you are pregnant. There are no reports of commonly used drugs (such as cold medicines, antibiotics, analgesics, etc.) affecting the accuracy of the test, but it will be affected if you inject or take fertility drugs containing HCG. In addition, people who are in menopause, are taking hormones, steroids and contraceptives, or suffer from polycystic ovary syndrome, hyperthyroidism and some endocrinological diseases may affect the test results.

At the same time, patients with primary hypogonadism, amenorrhea due to ovarian failure, polycystic ovary syndrome, etc. can cause abnormal increases in LH; pituitary-hypothalamic lesions, amenorrhea-galactorrhea syndrome, etc. Syndrome, anorexia psychosis, simple LH deficiency in the pituitary gland, delayed puberty, etc. can all lead to abnormal decreases in LH, so the test results should be judged based on your own situation.

The detection of ovulation test strips is not absolutely accurate. There are a large number of clinical cases of missed ovulation period and LH peak. Many women can only detect weak positives (indicating that ovulation is about to occur or have already ovulated) but cannot detect strong positives ( means ovulation is occurring), this does not mean that ovulation has not occurred. Pregnant mothers can also have sex during the weak positive period, and the probability of successful pregnancy is not low.

This article is provided by Baidu Reading. It is excerpted from \”Very Good Pregnancy: You Can Get Pregnant by Doing This\” Author: Yu Yue\’e