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 We've updated our vaping during pregnancy resource. Created in partnership with ASH, the Royal College of Midwives and Sands, the infographic has important guidance around vapes and pregnancy. The resource is now Health Problems Caused by Secondhand Smoke Smoking and Tobacco Use CDC Use of Electronic Vapor Products Before, During, and After Pregnancy Among Women with a Recent Live Birth Oklahoma and Texas, 2015 MMWR