It is possible for pregnant women to take aspirin enteric-coated tablets, but they need to be used with caution. Aspirin is an anticoagulant drug that is classified as a Class B drug in the classification of drugs in pregnancy and is relatively safe, but there are absolute indications. In pregnant women with high blood pressure or a previous history of preeclampsia, oral aspirin from the 12th week of pregnancy until late in the second trimester can prevent preeclampsia from occurring in this pregnancy. Small doses of aspirin can be used in recurrent miscarriages caused by immunologic factors to prevent blood clots, improve circulation, reduce the likelihood of miscarriage, and protect the fetus. Any drug has side effects, the use of aspirin must be under the guidance of a professional obstetrician and gynecologist, do not take the drug on your own, or change the dosage privately, so as not to affect the growth and development of the fetus.