I started taking folic acid before I even became pregnant. But yes, you need to start right away, it helps prevent your baby from spinal bifida (however it's spelled) lol.
If you are taking prenatal vitamins, which are extremely recommended by most OBs, then they already contain folic acid. I would recommend starting on a prenatal vitamin now or soon. When I was 6 weeks I started, and my doctor said it was a good time because it gives your body time to adjust to them and efficiently get the proper vitamins, like folic acid and iron, into your bloodstream.
Hey dear,the doc would recommend when u should start havin them,i started tin the 3 mnth ;-)
Dont wory ur doc would guide u