Amoxicillin is not significantly harmful to pregnant women and has no major impact on the development of the fetus. Oral amoxicillin can be considered in case of bacterial infection during pregnancy. The indications for the use of amoxicillin in pregnant women should be clarified before use. After 3 days of use, a review is needed to note whether the symptoms and laboratory indicators have improved, and if there are no indications for the use of amoxicillin, the drug needs to be stopped in time. However, some pregnant women taking amoxicillin can also have fungal infections, drug allergies, and hematological problems: 1. Fungal infections: Amoxicillin is an antibiotic, and its prolonged application can increase the chance of fungal infections, so it is not recommended to take it in large quantities for a long time. If the drug is used for a long time, pregnant women with low resistance may have fungal infections, and they should do relevant examination and laboratory tests in time; 2. Drug allergy: after individual pregnant women take amoxicillin orally, they may have symptoms of nausea, vomiting and other gastrointestinal discomfort, which are considered to be allergic phenomena and should stop the drug in time. If the allergy is serious, anaphylactic shock may threaten the life of pregnant women; 3. Blood system problems: Individual pregnant women taking amoxicillin orally for a long time may cause changes in the blood system, such as leukopenia, thrombocytopenia and anemia. If pregnant women have significantly reduced white blood cells, it can cause a decrease in resistance and make them prone to other bacterial infections. After thrombocytopenia, hemorrhage may occur during delivery, and if anemia occurs, it will also have a greater impact on the pregnant woman. Therefore, it is important to stop taking oral amoxicillin as soon as changes in the blood system occur. In addition, if the symptoms do not improve significantly after 3 days of oral amoxicillin, other bacterial or viral infections should be considered and the medication should be changed in time. It is recommended to choose sensitive antibiotics according to the blood culture results. After taking oral amoxicillin, it is also necessary to review the blood routine and liver and kidney function regularly.