Iba-iba talaga ang pinipili ng OB, pero lahat ng friends ko na pregnant ngayon ay nag-start ng prenatal vitamins as soon as they found out, most common yung may folic acid, iron, at calcium para sa baby's development at para hindi kami mauubusan. Best talaga to ask your OB directly what's best for you kasi may iba pa ring factors like kung deficient ka sa certain vitamins or may health conditions ka, but generally prenatal with folic acid is a must from day one ng first trimester!