There is a long list of suggested vitamins and minerals necessary to support a healthy pregnancy. According to the American College of Obstetrics and Gynecology, look for calcium, iodine, folic acid or folate, and choline, among other vitamins, to support brain and organ development in your baby, as well as strength for the mom who is fostering a healthy place for all this growth.
The mixture of multivitamins needed to support fetal development are not necessarily in your average multivitamin, or even a multivitamin tailored for women.
Talk with your healthcare provider about what areas of your diet need more support than others and find the prenatal multivitamin that will fill the holes of your diet.