Pregnant women 37.3 ℃ is considered fever, belongs to the category of low fever. If a pregnant woman finds that her body temperature is 37.3℃ and there are no other uncomfortable symptoms, she can first observe the subsequent changes in body temperature, and if the body temperature returns to normal at a later stage, there is no need to worry too much. If there is also cough, runny nose, sneezing, nasal congestion and other uncomfortable symptoms, persistent low fever or elevated body temperature, it is suggested that there may be upper respiratory tract infection, it is recommended to go to the hospital in time to clarify the cause, do not take medication without permission, so as not to affect the fetus. If there is an upper respiratory tract infection and the symptoms are mild, there is no need for medication, pay attention to rest, drink more water to increase body circulation, eat a light diet, keep indoor ventilation and avoid going to crowded places to cause cross-infection, usually about a week can improve on its own. If the symptoms are more serious, such as nasal congestion, breathing difficulties, coughing and other symptoms, we must take certain treatment means, to give antibiotics anti-infection treatment. Cephalosporin antibiotics or azithromycin are mostly used during pregnancy, which is safer.