Constipation.. Possibly?

Mary
I'm 33 weeks and 4 days into my pregnancy and was having trouble going to the bathroom this morning. I did go later on but more like an upset stomach. Now I'm having a pain in my upper abdomen, and hurts when I touched it. Does that sound like constipation? My son has been moving all day so I think he's ok.. I'm just wondering if anyone has experienced this pain?