pregnant?

I was supposed to get my period the beginning of January. Still haven't.. I've been peeing nonstop, cramping, dizzy, sooooo hungry, and have a really weird pressure feeling in my gut. I don't get paid until next Friday, don't have insurance so can't go to the doctor. Me and my boyfriend of 6 years have sex regularly when we get to see each other (LDR), and we'll only use a condom after I finish. I'm almost 90% sure that I am pregnant, but is there any other conditions or anything this could be? Not trying to get too excited before I find out for sure so trying to brace myself for the worst.