Many people think vaping is a safer option during pregnancy. But both smoking and vaping can affect a baby's oxygen, growth, and development. Here are some risks every expecting parent should know.. Pregnancy and Vaping CIMCC Vaping more effective than patches for pregnant women, study finds Dr Colin Mendelsohn Study finds vaping in pregnancy harms both mothers and babies Vaping in pregnancy Essential Parent Vaping doesn't harm pregnant women or babies: shocking study