Prenatal vitamins

I heard that after 12 weeks you can stop taking folic acid. I have been taking folic acid and will be 12 weeks tomorrow but I just brought some pregnacare multi vitamins and that has folic acid included in it. Can I take these even though I don't need to take folic acid anymore? Will it harm the baby? As I need the other vitamins in my system because I can't keep any food down