10 Riley Kirk is a cannabis researcher — and one of a growing number of women using marijuana while pregnant. “Despite multiple emergency room visits and consultations, the support I received was limited.”Doctors have long warned against marijuana use during pregnancy, citing serious health risks to the baby. But Sanchez is one of several women who are increasingly using marijuana while pregnant, despite this research, giving the term “plant mom” a whole new meaning. 10 Tatiana Sanchez, 30, dealt with severe nausea and constant vomiting while pregnant and said nothing worked — except cannabis. Tatiana Sanchez 10 Sanchez used a dry herb vaporizer and a “balanced 1:1 THC-to-CBD tincture” to manage her pregnancy symptoms.