The relationship between body temperature and ovulation, more strictly speaking, should be the relationship between basal body temperature and ovulation. In clinical practice, the basal body temperature is often measured to monitor whether there is ovulation. After ovulation, due to the stimulation of the body temperature center by the formation of the corpus luteum in the body, the basal body temperature appears to rise, so the body temperature on the second day of ovulation tends to rise, usually around 37℃, and this high temperature state lasts for more than 12 days. If the high temperature state lasts for more than 15 days, the possibility of pregnancy is very high, and most of them will have their menstruation between 12 and 14 days after the high temperature lasts.