Ovulation occurs within 24 hours of the ovulation test paper reaching its peak level. In physiological circumstances luteinizing hormone reaches its peak level within 24 hours after the woman can be induced to ovulate, and ovulation test paper is to use this mechanism, through the detection of luteinizing hormone peak level, to indicate whether ovulation will occur. In addition to ovulation test strips, ovulation can also be monitored dynamically by ultrasound. If a mature follicle disappears and the follicular wall collapses, this suggests that the follicle has ruptured and ovulation is occurring. Therefore, if you want to get pregnant, you can refer to the results of ovulation test or ultrasound to determine the ovulation period and have intercourse to increase the chances of pregnancy. If necessary, please consult a professional doctor for standardized diagnosis and treatment.