Did ovulation disappear after two days?

Patient's question:

No

Doctor's answer:

The first day of the next menstrual period is counted, and subtracting 14 days or counting backward 14 days gives the ovulation day. The ovulation day and the 5 days before it and the 4 days after it together are called the ovulation period, which, including the ovulation day, totals 10 days. Intercourse during this period increases the likelihood of pregnancy.