I think I might have a BFP....?

Ok so I haven't tested yet but I think there is a chance I might be pregnant. I am 2 days late on my period and that normally doesn't happen to me. I haven't had a late period since I first started. I have had headaches that keep coming back and feeling dizzy. Having some slight nausea and Im like always hungry. I just ate 2 pieces of pizza and then had a salad about an hr ago and I feel like I haven't eaten anything. I have been feeling crampy like my period is going to start but nothing has happened. Having lower back pain as well. I keep checking to see if my period is going to start but nothing has happened. I don't want to test yet so I can give the hCG hormone a chance to rise in case I really am pregnant. Does this sound like a possible pregnancy to you?? I hope so =D...