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 Smoking, vaping & pregnancy: in pictures Raising Children Network E Cigarettes and Pregnancy Maternal Infant Health CDC Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Vaping and Pregnancy: Are E Cigarettes Really Any Safer for You and Your Baby? 4 myths about vaping and pregnancy busted Your Pregnancy Matters UT Southwestern Medical Center