Protein shake

Jenna • We had our first baby girl September 21 2015 👑 she's our world! Now we're expecting baby number 2 in Sep!!
I was taking a protein shake before getting pregnant but stop and I wanted to start drinking one again do yall think its ok? Or do you think it will upset my stomach and stuff this far along? 
I just feel like I'm always eating and there not small meals anymore lol.