Anemia developed in pregnancy...

What prenatals can I take that won’t make me sick? My ob told me to stop taking them at 12 weeks due to HG but now I’m almost 30 weeks and I’ve developed anemia. What prenatals can I take that won’t make me sick that has everything I need?

Also, yes I tried taking them at night. I was constantly sick, in and out of the Er for being dehydrated because I literally could not keep anything down for 13 weeks. That’s why I was told to stop them. A lot of women don’t take prenatals and their baby is fine.