prenatal vitamins

I'm 5w6d and my Dr told me to only take folic acid. with my last pregnancy (different dr) I was put on prescription prenatal vitamins.. shouldn't I be taking the same ? Why only folic acid.. has anyone else been told not to take prenatal and just take that ?? I did ask him and He said I only need the folic acid. I'm currently trying to find new Dr , just wondering what you mommies think.. also any recommendations on some good prenatal vitamins are welcome . thank you