After ovulation, a woman’s egg cells survive for 2-3 days; the whole ovulation period, usually 3-5 days before and after the day of ovulation, lasts for about 10 days, but it can also be affected by emotions, diet, lifestyle habits and physical state. The probability of pregnancy is higher during ovulation, so if a woman has a plan to prepare for pregnancy, she can choose to have intercourse during this time to be able to improve the success rate of conception. However, since the precise moment of ovulation is short and difficult to detect in time, it is usually roughly projected by dynamic monitoring. Ovulation test strips are commonly used at home to monitor ovulation. Generally, when the ovulation test strips turn from strong positive to weak, it means ovulation is in progress or ovulation has already occurred. However, it requires regular visits to the hospital for ultrasound examination, which is more inconvenient to operate. To ensure accurate results, dynamic monitoring is usually required for the entire menstrual cycle, so you can choose the appropriate monitoring method according to your actual situation. If the ovulation time is too short or too long, it may be related to lack of rest, stress or endocrine disorder, so you can go to the gynecology department for relevant examination and treatment.