When does a woman ovulate?

Women's ovulation period is very important for those who want to have children. Having sex after accurately measuring the ovulation period will greatly increase the chance of pregnancy. There are also women who want to calculate the ovulation period to determine the safe period for contraceptive measures. So when is women's ovulation period? How should it be measured accurately? The following detailed explanation hopes to be of some help to everyone.

The ovulation period refers to the normal period when the ovary releases a perfect egg every month. After the egg is released, it enters the fallopian tubes and can generally survive for 1-2 days. This period is the ovulation period.

The ovulation period is not a fixed number of days, but it is determined by the actual number of days of menstruation. It can be calculated according to the formula, such as the first day of ovulation = the shortest menstrual cycle - 18 days, or the last day of ovulation = the longest menstrual cycle minus 11 days.

To accurately measure the ovulation period, you can use ultrasound to calculate the ovulation period based on the size of the egg. The egg is generally about 2-3mm and gradually expands as the ovulation period approaches. It can reach 18mm in the two days before ovulation and will expand to more than 20mm on the day of ovulation. If the observation day happens to be the ovulation period, sometimes you can even see the rupture of the follicle on the ultrasound. Therefore, using vaginal B-ultrasound to check ovulation is the most direct and accurate method.

Accurately measuring the ovulation period can also be determined by the changes in cervical mucus. When the amount of mucus secretion gradually increases and gradually becomes thinner and transparent, similar to egg white, it reaches its peak before ovulation, and the probability of ovulation is the highest, but this method is relatively low in accuracy.

In short, friends who need accurate measurement may try it, but please note that if you want to avoid ovulation as a contraceptive measure, this is not a good method.