Ps the 2 OTC medications i listed above are on a sheet given to me from my ob as safe to take during pregnancy.

What type of upset stomach? Like the runs, the opposite, nausea?
For the runs you can take kaopectate, constipation you can use colace, queasy tummy you can use preggie pops...ginger candy...peppermint or ginger tea......

I'd ask your doctor. Someone here might suggest something that could be dangerous :)