As we all know, ovulation is the prime time for women to get pregnant, and how to get pregnant quickly and accurately understand the ovulation period is closely related. Ovulation calculation Firstly, ovulation is calculated according to the menstrual cycle. Most women ovulate about 2 weeks (12-16 days) before their next menstruation. Secondly, measurement of basal body temperature to determine ovulation. Basal body temperature in women has cyclical changes, and the rise in basal body temperature after ovulation can indicate that ovulation has occurred, and ovulation usually occurs during the process of rising from low to high before the rise in basal body temperature. Warm tip: Basal body temperature must be measured after at least 6 hours of adequate sleep and before waking up for any activity, and recorded for at least 3 consecutive menstrual cycles. Under normal circumstances, the body temperature rises 0.3-0.5℃ after ovulation, which is called biphasic body temperature. If there is no ovulation, the temperature does not rise and the whole cycle shows a low flat body temperature, which is called monophasic body temperature. If menstruation is irregular or life is irregular, such as: night shift, business trip, insomnia, emotional changes, disease, etc., this method cannot be used to determine whether there is ovulation or not. Third, observe the cervical mucus to infer ovulation After menstruation is clean, the estrogen level in the body decreases and the amount of mucus secreted by the cervical canal is low, suggesting non-ovulation. As the estrogen level increases, the amount of mucus secretion increases until ovulation, the mucus is thin and transparent, and the degree of drawing can be more than 10cm. The last day ± 48 hours between the appearance of this mucus is the ovulation period. Fourth, ovulation prediction test paper test to infer ovulation period Firstly, determine the usual menstrual cycle, i.e. the number of days from the first day of each period to the first day of the next period, and start testing from the 11th day of the menstrual cycle, once a day, through home self-testing, so as to arrange the fertility plan and choose the time to get pregnant. Fifth, ultrasound follicle monitoring Ultrasound follicle monitoring is the most accurate monitoring method to know the time of ovulation and to know which side of the ovary is ovulating and to make a preliminary judgment of the quality of the follicle according to the follicle pattern. It requires a visit to the hospital for monitoring. Accurate grasp of ovulation is important for scientific and fast pregnancy!