Upset stomach..

Hey all so On Friday night I ate some (2) homemade biscuits that were a little on the old side but didn't realize until after (not moldy or anything) the next morning I had an upset stomach and some diarrhea. Tha was it for Saturday. Then I had some diarrhea again yesterday only once and at 1 am this morning I had what felt like an upset stomach but not totally sure because I was half asleep. But now that I'm awake and trying to eat breakfast (bagel w cream cheese and grapes) I'm starting to get a slight upset stomach again and can't really eat. At the moment. Is there anything I can do or take to help?? I'm 24 weeks.