There are a list of prenatal vitamins that you can buy at Walmart for a low price. Walmart offers 30 day supply for $4 or a 90 day supply for $10. I took the prenatal vitamin called Prenatal RX during my second pregnancy and it didn't make me sick or anything. The only thing is that you have to have your doctor write the prescription for the vitamin that Walmart offers. You can go to Walmart and they will give you a list of their discounted prescriptions so that you have the name and can ask the doctor to write a prescription. Just helpful information in these tough economic times.