I've read on the "materna" prenatal vit. Website that it is recommended to take prenatal vits. While you are trying to have a baby. From what I read, the reason is to make sure you have enough folic acid in your body for the baby's developement and help prevent against birth defects. I am taking them now for about a month since my husband and I are trying to concieve. Prenatal vitamins are like an everyday vitamin except are formulated to have higher folic acid levels and iron. I don't know if they interfere with taking pregnancy tests, so maybe test before you take your pill.

I've just started taking materna vitamins ( just over 5 weeks pregnant). Some vitamins will make you sick, although I haven't had any problems so far with mine. If that happens i've read that you can take two flinstone childrens vitamins with a folic acid pill.