Pregnancy protein shakes?

Hey 👋 any recommendations on a good protein shake for pregnancy? I’m really high risk for preterm labor and I want my baby to be getting the best nutrition so he will be born at a healthy weight.

He has Down syndrome, he also has Duodenal Atresia. With the Duodenal Atresia I’m showing signs of to much amniotic fluid which can cause preterm labor. He’ll need surgery when he’s born and they won’t be able to do that surgery until he’s at a good weight and healthy. So I want to help him be a chunky little healthy man. So any other tips would be much appreciated.