The document discusses several herbal products that are commonly used during pregnancy - chaste tree to treat premenstrual syndrome and menstrual issues, ginger to treat morning sickness though in large doses it risks miscarriage, and cinchona bark which contains harmful alkaloids and should be avoided during pregnancy. It cautions that ephedra can increase blood pressure and is prohibited during pregnancy. It advises pregnant women to consult their healthcare provider before taking any herbal products, be aware of risks and benefits, and carefully consider any drugs during pregnancy.