2nd Hand Vape Smoke And Pregnancy 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 2nd Hand Vape Smoke And Pregnancy The risks of secondhand smoke Is It Safe To Smoke A Vape Around A Pregnant Woman? While vaping is not risk free, it is less harmful than tobacco Our World in Data Vape residue may harm unborn babies, mouse study suggests