Hi - can anyone clarify when your suppose to take folic acid? I was taking it before i concieved and thought that at 12 weeks you stop taking it. BUT now I have read that you should take 400mg daily all through pregnancy - confused!!! What are you suppose to do re folic and other vitamins? I think my diet is good but concerned I should try my best for baby but worried I may overdose on some bad vitamin (A mainly!!) !! Help!