Smoking, vaping & pregnancy: in pictures Raising Children Network 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 Vaping does not harm pregnant women or babies, shocking study claims Study finds vaping in pregnancy harms both mothers and babies Do you know that vaping or E cigarettes are hazardous during pregnancy as it can affect fetal development. If you are pregnant or trying to become pregnant, you should be aware about the Study shows vaping nicotine while pregnant may impact fetal development