If you have a condition like vaginitis cervicitis, it does not usually have a significant effect on the fetus. Timely cleaning and intravaginal medication can control the development of the disease. If you have endometritis or pelvic inflammatory disease, it can affect the fetus and cause premature rupture of the fetal membranes resulting in miscarriage or fetal ischemia, hypoxia, developmental malformations, or even stillbirth in severe cases, which may lead to premature birth in the middle and late stages of pregnancy. It is recommended to use drugs that have less impact on the fetus, such as cephalosporin or amoxicillin.