Vaping During Pregnancy: Are e Cigarettes Safe for Baby? SA Health Smoking and vaping during pregnancy can be harmful to your unborn baby. The chemicals in cigarettes and vapes can damage your baby's Instagram In the United States, about 8% of all women who are pregnant smoke cigarettes, and another roughly 4% report using electronic cigarettes or vapes. To learn more about the dangers of smoking Study shows vaping nicotine while pregnant may impact fetal development