Second Hand Vape Smoke Pregnancy The Real Risks of Vaping While Pregnant Vapes are commonly used as a way to stop smoking but it could have a huge unexpected risk Avoid Impairment Safe Sleep Academy Animal Study Shows Harmful Effects of Secondhand Smoke Even Before Pregnancy Duke Health Frontiers Publishing Partnerships Prenatal nicotine exposure during pregnancy results in adverse neurodevelopmental alterations and neurobehavioral deficits Second hand smoke is highly toxic. Here's what happens when pregnant women and their babies are exposed to second hand smoke.