Ovulation test strips are clinically accurate, and if they are not expired or contaminated, ovulation monitoring starts on the twelfth day of menstruation, and the urine is examined at about ten o’clock, and there is no strong positive result, there is almost no chance of pregnancy in the clinic. It is recommended to analyze whether there is ovulation or not through ultrasound examination and clinically combined with the results of sex hormone six tests. If there is no ovulation and the ovarian function and estradiol are normal, it is recommended to promote ovulation for treatment and monitor the growth and development of follicles during the process of promoting ovulation and guide intercourse to improve the chances of pregnancy.