Aspirin can be safe during pregnancy, but this depends largely on the dose and the timing within the pregnancy. Low-dose aspirin (typically 81 mg daily) is considered safe and is often recommended by healthcare professionals for certain medical conditions during pregnancy, such as the prevention of preeclampsia, in cases of blood clotting disorders, or if there is a history of pregnancy complications or multiple pregnancies. This low-dose aspirin is usually started between 12 and 28 weeks of pregnancy and continued until delivery. However, higher doses of aspirin are generally not recommended during pregnancy because they can increase risks such as pregnancy loss in the first trimester, serious kidney conditions in the fetus after 19 weeks, and premature closure of a heart vessel in the fetus during the third trimester. Pregnant individuals taking low-dose aspirin should do so only under medical supervision, and high-dose aspirin should be avoided unless advised by a healthcare provider. In summary, low-dose aspirin is safe and often beneficial under medical guidance during pregnancy, but higher doses carry risks and are usually avoided.
