Prenatal vitamins

Hi all! So I’m 29 weeks and I’ve been taking prenatal vitamins and a folic acid pill. I was taking a prenatal before getting pregnant and switched to another because the original one was making me sick. I noticed the other day that after 7 months I was suppose to take 2 of the new prenatal but have only been taking one because most doses are 1 vitamin. I try to eat well rounded meals but sometimes that doesn’t happens I’m scared my baby wasn’t getting enough nutrients. Thoughts? Thanks!