How many days after menstruation does ovulation occur?

Patient's question:

No

Doctor's answer:

The date of ovulation is generally about 14 days before the next menstrual period. Starting from the first day of the next menstrual period, count backwards 14 days or subtract 14 days to determine the ovulation day. The period from the ovulation day and the 5 days before it and the 4 days after it is collectively referred to as the fertile window.