The best time to take a woman’s temperature to see ovulation is after six hours of full sleep, which in most people is usually when they first wake up in the morning, when they should not talk or make any movements or do anything, and then put the thermometer in their mouth to take the temperature. The temperature at this point is called the basal body temperature, and the basal body temperature measurement can show how a woman’s body temperature changes throughout the day. During normal ovulation, the body temperature will increase by 0.3-0.5℃ because the progesterone level in the woman’s body increases and progesterone can regulate the body temperature center to make the body temperature rise. If a woman has intercourse after ovulation and becomes pregnant, the increase in body temperature will usually last for more than 14 days. If the temperature drops after 14 days, it usually means that there is no pregnancy.