How to calculate the ovulation period most accurately

Patient's question:

No

Doctor's answer:

The ovulation date of a woman is generally about 14 days before the next menstrual period. After the egg is released from the ovary, it can survive in the fallopian tube for 1-2 days, waiting for fertilization; male sperm can maintain fertilizing ability in a woman's reproductive tract for 2-3 days, so sexual intercourse during the days before and after ovulation increases the likelihood of conception.