Does smoking affect fertility? What role does vitamin C supplementation play? What's the safest way to quit smoking during pregnancy? Is it safe to use e-cigarettes during pregnancy? Content How does smoking during pregnancy affect a baby? How does exposure to secondhand smoke affect pregnancy? Is the use of electronic cigarettes (vaping) safe during pregnancy? Can quitting smoking during pregnancy reduce a baby's health risks? What can I do to quit smoking? Is it safe to use stop-smoking products during pregnancy? Is postpartum relapse common?