Prenatal Vitamins

Hey ladies! My fiancé (husband next week! EE!) and I are trying to conceive. Today I bought the cvs prenatal gummies with DHA but I noticed there is not iron or calcium in them.. I heard that prenatal vitamins help increase your risk of conceiving and having a healthy pregnancy. Have you tried the gummies? What are your thoughts or what prenatal vitamin is best? There was soooo many I had no idea how to chose! LOL