How Do I Determine My Ovulation Date?

Ovulation day, that is, the day on which the eggs are laid. In the case of normal menstruation, female ovulation period is calculated from the first day of the next menstrual period. The countdown from 14-16 days is the ovulation day. The first 5 days and the last 4 days of the ovulation day together will become the ovulation period.

Ovulation day

In fact, ovulation bleeding is a type that every female friend may appear.

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Of all the methods for measuring ovulation, the most accurate is that it can not only detect whether there are dominant follicles in the ovaries on both sides, but also the size of the dominant follicles, the thickness of the endometrium, etc., but this method is generally Only use it when the patient really needs it. "For example, in some women with ectopic pregnancy, the left fallopian tube has been cut off. In this case, if her left ovary ovulates, she can't get pregnant, so you can do it by B ultrasound observation. Which side of the ovary ovulates. " "Monitoring with B-ultrasound

1 Determine if ovulation guides contraception

Generally, the basal body temperature in the follicular phase is 36.5 ° C, and the luteal phase rises by more than 0.5 ° C. Therefore, biphasic manifestations are present, indicating that ovulation is present. %.

If the body temperature increases by 0.3 to 0.6 ° C or even higher within 24 hours, it means that it is in the state of ovulation. In addition, the basal body temperature can also roughly see the quality of the discharged eggs. If the basal body temperature is high and can last for 13 to 14 days, then the quality of the eggs is good.

2 Diagnose early pregnancy and determine the safety of early pregnancy

If you have a high basal body temperature for more than two weeks, consider going to the hospital for a check, because you may be pregnant. If 20 days can be identified as early pregnancy. The BBT curve gradually decreased during the first trimester, indicating insufficient corpus luteum function or placental dysfunction, and a tendency to abortion.

3 Observe luteal function

BBT should rise immediately after ovulation and continue at a high level 11 days. If the BBT rises stepwise, it takes 3 days before the curve reaches a high level or the BBT rises steadily <11 days, which can be diagnosed as luteal phase defeot (LPD).

4 Tips for other lesions

BBT does not decrease during menstruation, there may be endometriosis or early subclinical abortion, and the endometriosis may cause heat absorption after bleeding. In patients with primary amenorrhea, BBT is bipolar, and uterine amenorrhea should be considered, such as congenital absence of uterus or genital tuberculosis that destroys the endometrium.

5 Calculate the appropriate endometrial biopsy time

For patients with irregular cycles, to understand whether the endometrium has a secretory response and corpus luteum function, an endometrial biopsy should be performed 2 to 3 days before the next menstrual period after the rise of BBT.