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If you have atrial fibrillation, a common heart rhythm disorder (arrhythmia), you might need to change how you manage the condition during your pregnancy. For instance, you might need to avoid certain medications while you are pregnant.

Atrial fibrillation increases your risk of developing blood clots in your heart. Pregnancy increases your risk of developing blood clots in your legs. Taking blood-thinning medications can help reduce your risk of blood clots, but certain blood thinners may not be safe to take during pregnancy.

If possible, discuss your condition and medications with your doctor before you become pregnant. Pregnancy can make atrial fibrillation worse. It's also possible to develop atrial fibrillation while you're pregnant. Talking openly with your doctor allows him or her to develop the safest treatment plan for you and your developing baby.