I was skeptical to Williamsmummy, cos I am a nurse, but the dosages in supplements are the equivalent of eating a banana. They are over the counter meds from naturopaths who know how much we can supplement and be safe. Obviously taking large doses of vitamin or mineral is dangerous . But I am referring to the kind that is safe in pregnancy

I took them with dd1, because I got dreadful cramps that woke me from sleep early in pregnancy. It was horrible!!