Generally speaking, the chances of conception are highest when you have intercourse between 5-7pm during ovulation, as this is the time when sperm are most active. With the popularity of medicine, many women are calculating ovulation and choosing to have sex during ovulation to increase their chances of conception. Ovulation is relatively simple to calculate. The day before and after the next menstrual period is about 14 days, and 3-5 days before and after this day is the ovulation period. During the preparation period, both men and women should exercise, and men should quit smoking and drinking, not stay up late and maintain a good state of mind in order to improve sperm quantity and quality. Sperm vitality is generally strongest between 5-7pm daily, so choosing this time to have intercourse during ovulation will improve the chances of conception. However, it should be noted that pregnancy is a natural process, and after mastering the scientific method, it is also necessary to maintain a good state of mind. This will enable you to achieve an optimal state and improve your chances of conception.