On which day after menstruation does ovulation begin

Ovulation begins around the 7th to 9th day after menstruation, and the specific time will be affected by the woman's menstrual cycle and the length of the period, so it cannot be generalized.

If a woman has a regular menstrual cycle of 28 days, and her menstrual period lasts 2 to 7 days, then ovulation occurs around the 7th day after her menstrual period ends, which is around the 14th day of her menstrual period. If her menstrual cycle is 30 days, ovulation may be slightly delayed, around the 9th day after her menstrual period ends, which is around the 16th day of her menstrual period.

A woman's ovulation time may be affected by many factors, such as mood, environment, and medication. Even women with regular menstrual cycles may ovulate earlier or later. Of course, if a woman's menstrual cycle is irregular, then it is impossible to determine the ovulation time by simple date calculation. At this time, it is recommended to use other methods to monitor ovulation, such as using ovulation test strips, measuring basal body temperature, or going to the hospital for B-ultrasound monitoring.

If a woman does not have a fertility plan, she still needs to take contraceptive measures, such as using condoms and birth control pills, to prevent unwanted pregnancies. If she has a fertility plan, she can increase the number of sexual intercourses during the ovulation period to increase the chance of pregnancy.