Is it safe to use an electric blanket while pregnant?
Overheating has been associated with pregnancy loss and birth defects, but using an electric blanket at a comfortable setting has not been shown to be unsafe for you or your baby. That said, if you were to become so warm that you perspired a great deal, you would be at risk for dehydration. To avoid any risks, the American College of Obstetricians and Gynecologists (ACOG) recommends that pregnant women use their electric blankets to heat up their beds prior to bedtime, then turn them off when sleeping, to avoid any risk of overheating.
Some people also worry about the low-level electromagnetic radiation generated by electric blankets and other electrical appliances. Research has not shown them to increase the risk of birth defects, ACOG states.