Safe protein supplement??

I'm currently 16 weeks pregnant and almost all meats seem gross to me. I can do seafood but I know I should limit my intake of fish and I also don't want to make it every night. My husband put some fear in me last night and told me if I dont eat properly that I'm gonna hurt the baby and lose all my teeth. Seems extreme but his sister lost her teeth during pregnancy. I don't go back to the Dr for 2 weeks and I don't want to do any harm to myself or the baby in that time. Does anyone know of any safe protein supplements I could take? Such as ensure, protein shakes, slim fast (not to lost weight obviously) etc??