Vaping does not harm pregnant women or babies, shocking study claims Vaping while pregnant may pose serious risks Futurity 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 British Journal of Midwifery Electronic cigarettes for smoking cessation in pregnancy: a nationwide mixed methods study British Journal of Midwifery Pregnancy and Vaping CIMCC