Could I be pregnant or just period is being late? HELP.

I'm 17 years old and I'm never been late, or at least I think I haven't because it wasn't until the last time that I started keeping track of my period. I'm so scared, I haven't had unprotected sex but still, the last time was 11 days ago. I'm 4 days late, having light cramps very often like every 1:30 hour or when for example I lay down or I do abs. Also I'm urinating more often, and having hot flashes and more hungry. From 1 to 10 what possibilities do you think I could be pregnant?