OB or regular doctor?

this is a bit TMI so stop reading if you get grossed out easily😅. But anyways I’ve had diarrhea and an upset stomach for two weeks now. I’m 32 weeks pregnant. Last week I called my OB and she said to go to labor and delivery triage to get checked out cuz I may need fluids. I went and everything was fine, they gave me fluids because I’m was having small contractions. but I’m still having diarrhea and my stomach is still upset. Should I call my OB again? Or just go to a regular doctor?