During pregnancy, the mucous membranes of the upper respiratory tract, such as the nose, throat and trachea, thicken due to the effects of estrogen and progesterone, resulting in mild hemorrhage and edema, which can lead to upper respiratory infections. In addition, the high level of progesterone in the body during pregnancy can also cause a mild increase in body temperature. Therefore, when a pregnant woman has a fever, she should go to the hospital in time for examination to determine the cause of the disease and then treat it symptomatically. 3.Incorporate more fresh vegetables and fruits, such as oranges and apples, which can replenish the body vitamins and help improve body resistance; 4.If the body temperature exceeds 38.5℃, you can use antipyretic drugs such as acetaminophen and ibuprofen under the guidance of a doctor, but it is not recommended for pregnant women to use drugs on their own to avoid affecting the fetus. .