E Cigarette Use During Pregnancy & Breastfeeding FAQs HealthyChildren.org Is Secondhand Vape Smoke Bad for You? The Truth on the Trend Molekule 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 Health Effects of Maternal Exposure to Thirdhand Chemical Residue from Vape Aerosols Persist Long After Infancy Thirdhand Smoke Resource Center