Protecting Little Lungs: Unveiling the Harsh Reality of Vape Smoking During Pregnancy" Vaping exposes the developing fetus to harmful chemicals, including nicotine potentially leading to low birth weight, preterm birth, or developmental Smoking and vaping during pregnancy increase the risk of preterm birth support is available to help you quit. Smoking during pregnancy is the biggest modifiable risk factor for preterm birth. Quitting Vaping in Pregnancy: Advice From the New Zealand Governement New vaping warning issued for pregnant women Netmums