Vaping before, during and after pregnancy: leaflets and infographics ASH How Secondhand Smoke Affects Children and Pregnant Women 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 Second Hand Vaping Vape Smoke Free 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 Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London