What is the temperature of the early pregnancy?

A woman's basal body temperature changes periodically like the menstrual cycle. The armpit temperature of a normal human body is 36 ° C ~37.3 ° C. After pregnancy, the temperature of a woman will rise by about 0.3~0.5 ° C. According to the difference in basal body temperature, if the high temperature lasts for more than 16 days, it is a sign of pregnancy.