The basal body temperature will rise after pregnancy. The basal body temperature is the temperature that is measured by placing the thermometer under the armpit for 5 minutes in the morning when you wake up without moving or talking. After pregnancy, the basal body temperature will be around 37℃, and the temperature at night is basically a normal phenomenon, around 36.8℃ or 36.5℃ is normal, but no matter how it changes, the basal body temperature will not exceed 37.5℃, if it exceeds 37.5℃ is a pathological phenomenon. It may be due to cold, fever, tonsillitis, or discomfort in other parts of the body that cause the temperature to rise. It is recommended to do further clinical examination to understand the cause of the elevated body temperature and then give appropriate treatment.