My friend took xanex she suffers from severe anxiety assumed in moderation it was OK nd is 18 weeks pregnant shes really worried and scared that when the babys due theyll do a stool test and itll come back xanex. And theyll take the baby from her She only took it a couple times. Does anyone know how long xanex last in a fetus? If she stops now witch she has would it not even show up? PLS HELP SCARED.