What is “pregnancy tea”? Pregnancy tea is an herbal infusion intended to help provide vital vitamins, minerals, and nutrients during pregnancy, much like a prenatal vitamin. Pregnancy places a huge demand on the mother’s body as she is literally building a human, so maintaining healthy nutrition is critical for both her and her child. Many women take prenatal vitamins, but before there were pills there were herbs. Many plants we consider to be only for animals or even nothing more than weeds are in fact great sources of nutrition. Pregnancy tea uses traditional blends of dried herbs for women to drink while pregnant.