Period is the common name for what is clinically known as menstruation. Normally, a woman ovulates about 14 days before her next menstrual period, but the period of ovulation varies due to large individual differences. A woman’s ovulation period is usually not a day, but a period of time. The day of ovulation for women with regular periods is about 14 days before the next period, and ovulation occurs five days before plus four days after the day of ovulation. However, due to large individual differences, the exact ovulation period still needs to be determined according to the actual situation. If a woman wants to clarify the ovulation period, she can go to the hospital for ultrasound monitoring, or through the use of ovulation test strips and monitoring of the basal body temperature, etc., in order to determine. If necessary, women can also go to the hospital to seek medical help.