Any recommendations for prenatal supplements or folic acid and how much to take as I get acne whenever I start taking them so eventually stop.

0.4mg (400mcg) / day. The CDC & IOM recommend that all women of childbearing age consume 0.4 mg (400 micrograms) of folic acid daily to prevent two common and serious birth defects, spina bifida and anencephaly. The USPSTF recommends 0.4-0.8mg. Women who have already had a NTD-affected pregnancy should take 4.0 mg (4000 mcg). You can try to get some/most of your folic acid from fortified foods, & rest from vitamin.