pain

This is my 2nd pregnancy. Ill be 19 weeks on wednesday. so im not that big yet... i do have a belly but nothing extreme.. anyways.. i do not remember being in pain like this with my first pregnancy... i have so much discomfort/pain in my stomach i cant even sleep comfortably. i had a csection with my first could this be the reason???

It's possible. Sometimes you get adhesions when your incision heals, then when everything is stretching in your next pregnancy, they stretch and tear. But second pregnancies are often just generally more uncomfortable than first ones.