Cramping is making me nervous!!!

Brittney
Every morning for the past week at 2:30-3 I get semi-painful cramps!! I can't tell if it's constipation cramps or my uterus growing or something not going right!!! I'm around 6 weeks and have a prenatal appointment on Thursday. Anyone have this?! It's my first and I always get a little nervous when I start cramping up!