feeling worried

I just turned 6 weeks pregnant and have been having pelvic cramps. The last couple weeks all my other pregnancy symptoms or hit and miss .I'm just getting concerned because I know pelvic cramps is a sign of ectopic pregnancy. I have not had any bleeding or spotting my first prenatal appointment is February 12th. Iam I just worrying over nothing or should I try to see a doctor sooner. I didn't have any cramping at all with my first pregnancy I do know every pregnancy is different. So I really can't compare the two just looking for some peace of mind