My wife is 7months preg. she has upset stomach and diarrhea is there anything she can do or take for this?

Diarrhea: First of all, it is important that she keep well hydrated. Start with ice chips then on to clear liquids like broth or ginger ale if she can tolerate it. After that she should stick to a very bland diet like rice, applesauce, dry toast for a few days. She can try over the counter Immodium AD for the diarrhea. If she is unable to tolerate any orals, she may need iv fluids.