Could I be prego finally.

I have a full period Oct 17-21, then spotting Nov 8-10. I have not stopped having weird cramps since, my pants are tighter than normal, and I want to eat more often but in less amounts. I took a test Thursday and it was negative. My bbt has gone up .2 for the past 4 days. This will be baby #2, I didn't chart anything with my son. From yalls experience is it a good possibility that I'm pregnant finally.