Actually @funkdaddy it’s all in the details. As far as protein supplements go, IMO, the simpler the better, and as high quality as you can afford.
Protein supplements are highly merchandised, and many of the best known ones are made with inferior ingredients, and/or have ingredients that would be harmful to your baby. So, if you’re preggers, you are wise to do your homework.
I just searched for “protein powder for pregnancy”. This is one of the hits that popped up.
https://www.amazon.com/Baby-Booster-Prenatal-Protein-Powder/dp/B00RORCAIM/ref=as_li_ss_tl?ie=UTF8&linkCode=ll1&tag=protein0d7-20&linkId=d47dfa679a55d79b9527024efb473a6d
Remember that just because it says “OB/GYN Approved” doesn’t mean much, but at least they put some thought into making sure the ingredients would be safe for your baby.
They have a back view of the package but it’s not possible to read all of the ingredients. Still you might be able to find something like that in a store somewhere.