Is it normal for me to have stomach pains at 8weeks

It's all over my stomach

I've been dealing with constipation diarrhea

Have you been throwing up? Or have you not been eating? It could be from your stomach contracting if so.

I'm in 19 weeks when I get contipated i feel pain in lower part of my belly...

Cramps? I mean when I need to use the bathroom I get pain bad when pregnant