What is the ovulation period on the 15th of every month? What is the calculation method?

To calculate a woman's ovulation period, we need to understand the woman's menstrual cycle and the cyclic changes in the ovaries. A woman's menstrual cycle is usually divided into two phases: early and late. The initial period usually lasts 3-5 days and then ends. The late phase usually lasts 10-14 days and then ends.

A woman's ovaries only mature once in a menstrual cycle, so a woman's ovulation usually occurs on the day between their pre- and post-menstrual cycles. Generally speaking, women ovulate on day 14 of their menstrual cycle, but this method isn't always accurate because a woman's menstrual cycle can be affected by many factors, including diet, exercise, stress, and more.

If you want to calculate a woman's ovulation period more accurately, you can consider using some scientific methods, such as measuring body temperature, observing changes in appetite and sexual desire, observing vaginal secretions, etc. These methods can help women understand their menstrual cycles and ovulation periods more accurately and make plans accordingly.