Weird pains

Leigha
So last night I had diarrhea and today I feel some pressure in my bottom area like I need to go but I can't. 
Anyways throughout the day today I've had weird pains in my stomach on and off. The area it's in changes. At first it was like 5-10 seconds near my pelvic bone area, maybe twenty minutes later it was around my ribs, and then about an hour later it was about belly button level. All on the same side. I had a mc in February so I'm probably making this a way bigger deal than it is but I just feel off somehow. I'm 13 weeks Friday so it could just be some growing pains but I don't know. I hate not being in the know about these things.