What vitamins to take to get pregnant and lower risk of birth defects?

Prenatal vitamins: Vitamins don't help you conceive faster, but prenatal vitamins with at least 800 micrograms (mcg) to 1 milligram (mg) of Folic Acid lower the risk of spina bifida. Talk to your OB if taking anti-seizure meds or a family / personal history of birth defects; you may need 4-5 mg of folic acid. Avoid excess alcohol, smoking, marijuana & other drugs, and review any prescription meds with your doctors.