Ovulation test paper if the two colors are very light, that is weakly positive, only ovulation test paper appears strong positive, only suggests that ovulation will occur in 24-48 hours after the appearance of a strong positive, so it is recommended to continue to use ovulation test paper to monitor, and it is recommended to keep the urine is best to be around 10 o’clock in the morning urine, because this time of the urine in the luteinizing hormone value will be relatively high, then the strong positive rate will be higher, so it is recommended to use this time to do specimens. It is recommended to use urine from this time of the day as a specimen because the luteinizing hormone value is relatively high at this time of the day and the rate of strong positives will be higher. If the result is weakly positive, it indicates that there may be no ovulation, and ultrasound can be used to monitor the growth and development of the follicles. If there is no ovulation through ultrasound, it is recommended that ovulation be promoted in the clinical treatment.