Many women know that ovulation is the period of easy conception, and if it is possible to predict their ovulation period, then it is very beneficial to guide the time of intercourse to conceive as soon as possible. For women with regular menstrual cycles, the day of ovulation is 14 days before the next menstrual period, and 2-3 days before and after the day of ovulation is the period of ovulation. For women with irregular menstrual cycle, you can apply methods such as basal body temperature measurement, observation of cervical mucus, ovulation test paper, ultrasound monitoring of follicles and determination of luteinizing hormone to determine the day of ovulation. After ovulation, the progesterone produced by the corpus luteum of the ovary acts on the hypothalamic thermoregulatory center, causing the body temperature to rise by 0.3-0.5 degrees compared to the original. 2-3 days before and after the rise of the basal body temperature is the range of ovulation. The mucus secreted by the cervical gland cells also changes significantly periodically with the cyclical changes of the ovaries. By the time ovulation occurs, the amount of cervical mucus secretion is increasing, the mucus is thin and transparent, and the degree of lacrimation can be more than 10cm. At this time, women will feel an increase in the amount of leucorrhea and moist vulva. Ultrasonography can be used to directly monitor follicle development and the ovulation process. Ovulation test paper is also one of the more commonly used methods. There are many ways to monitor ovulation, and women can choose the right method to monitor ovulation according to their own situation.