As long as a woman’s follicles are mature, ovulation can occur at any time throughout the day, as well as in the middle of the night while sleeping. When a woman undergoes follicle monitoring, test strips can detect whether the patient’s follicles are mature, and are not able to accurately determine when ovulation has occurred through the values detected. After a woman ovulates, the egg in the female body survival time is relatively short, about 24 hours or so, in the first 12 hours of ovulation within the highest chances of conception, more than 12 hours after the woman’s chances of conception are relatively low, it is recommended that women with pregnancy requirements, try to choose to cohabitate before ovulation, sperm in the female body survival time is relatively long, about 72 hours, as long as women in the sperm survival period occurs ovulation, it will be the first time that a woman is in the body of the sperm. As long as a woman ovulates during the sperm survival period, she will be able to conceive when the quality of the egg is the best, which can greatly improve the chances of women’s conception.