After pregnancy, there is a certain difference in body temperature in the morning and in the evening, which is around 0.5℃, not too different, the body temperature is slightly lower in the morning and slightly higher at noon and at night. During pregnancy, the metabolism of the body is accelerated, so the heat production of the body will increase, and the body temperature of pregnant women will be slightly higher than the usual basal body temperature, but will not exceed the normal body temperature. The body’s metabolism increases after pregnancy, so the energy required will also increase accordingly. You should pay attention to ensure adequate intake of nutrients, especially calorie intake, to avoid malnutrition of the fetus. The body temperature should be monitored regularly during pregnancy to avoid high body temperature, because the body resistance is relatively lower during pregnancy, easy to catch cold and flu, if a fever may cause some harm to the fetus.