Waterpipe Tobacco (Hookah) Use in Pregnancy: Associations with Nausea and Vomiting of Pregnancy.

· Waterpipe tobacco use is one of the most common forms of tobacco use among reproductive age patients.. · Waterpipe tobacco use was not associated with any changes in nausea/vomiting of pregnancy symptoms.. · Future research on the use of waterpipe tobacco in pregnancy can aid in public health responses..