Best prenatal vitamins? Have you heard of PrePlus?

My doc prescribed PrePlus for me and looking at the ingredients https://dailymed.nlm.nih.gov/dailymed/fda/fdaDrugXsl.cfm?setid=e1a64583-e123-4465-8e36-d99fe996d639&type=display

It seems pretty weak on the Calcium front and no Omega3’s. I also heard this other thing called DHAs. Help, what do you all suggest?

Anyone other than me taking PrePlus out there?