Lee, some docs gave extra, some say folic is enough. Actually, if u have a balanced diet and not puking too much, it's not necessary to have the prenatal vits etc. Most impt in 1st 3 mths is the folic acid. Also, if u r suffering fr constipation, avoid calcium supplement. Prenatal also contains calcium which may cause constipation or makes it worse too. Iron pills also causes constipation. If u r not eating well, it's best to take the supp.