Women are the most knowledgeable about their own bodies, and they can calculate the ovulation period every month, especially before having sex. They will count with their fingers. Once they encounter the ovulation period, there may be an extra baby in their body, and this kind of thing cannot be taken at risk. In fact, the ovulation period can be calculated accurately, and the possibility of pregnancy is very small. However, the ovulation period is subject to change and not fixed.
Ovulation period calculation
1. Based on the relationship between ovulation and menstruation, the ovulation period can be calculated according to the menstrual cycle. The calculation method is to start from the first day of the next menstrual cycle, and the last 14 days or minus 14 days is the ovulation day. The ovulation day, along with the first 5 days and the last 4 days, is called the ovulation period. This is the theoretical basis of the safe period contraception method.
2. Ultrasound examination method is currently used in major hospitals in China to observe the size of the ovaries using transvaginal ultrasound, measure the size of follicles, and estimate the ovulation period. Follicles are generally about 2-3 millimeters in size and gradually increase towards ovulation day. They can reach 18 millimeters in the first 2 days of ovulation and increase to over 20 millimeters on ovulation day. If the observation day happens to be ovulation day, sometimes follicle rupture can even be seen on ultrasound.
3. The urine measurement method can monitor follicles with ultrasound under the guidance of a doctor. When the follicle reaches about 1.8 centimeters, urine LH should be measured every 2-4 hours. If there is a drop peak, it can be considered as a urine LH peak. Ovulation occurs within 12-24 hours after the peak appears.
If it is inconvenient to monitor follicles, it can be combined with previous menstrual cycles to measure urinary LH two days before expected ovulation. The interval between measurements can be longer, and when the urinary LH value significantly increases, it can be monitored every 2-4 hours. This method is semi quantitative, easy to operate, economical, non-invasive, and convenient for self-monitoring.
Symptoms during ovulation period
1. When ovulation arrives, women become more attractive and confident. Research shows that changes in estrogen and progesterone levels in women during ovulation make them more attractive to women. Psychologically speaking, women at this time may have a need to enhance their own attractiveness, so they dress with extra care and look even more sexy.
2. White discharge is mostly colorless and odorless mucus, mainly used to moisten the vagina, excrete waste, and inhibit the growth of pathogens. During ovulation, women's vaginal discharge will significantly increase, appearing as a thin milky white color. If wiped with tissue paper, egg like sticky strips will be found.
3. During ovulation, a large amount of estrogen is secreted, and the basal body temperature will rise by about 0.5 ° C. Some female friends may experience a feeling of low-grade fever. Therefore, women can also infer their ovulation period based on changes in their basal body temperature every morning.
4. During the ovulation period of women, mature eggs break through the follicles on the surface of the ovary and are discharged. At this time, a small amount of fluid inside the follicles will flow into the lowest part of the pelvic cavity. For more sensitive female friends, there may be a mild feeling of prolapse in the anus or slight pain in the lower abdomen on the ovulation side.
Whether it is preparing for pregnancy or contraception, it is important to know when the ovulation period is. To prevent pregnancy, sexual activity must miss the ovulation period. To prepare for pregnancy, it is necessary to have sex specifically during the ovulation period. When the ovulation period arrives, the body will also respond. Careful observation will definitely reveal differences from others. Tools can also be used to find the ovulation period, and follicle monitoring has the highest accuracy.
