Just a little confused on these symptoms..pregnant or period?

Right after i got off my period, my boyfriend and i started having (unprotected) a couple of times a day for like 2 or 3 days. He went away for college, and i went up to visit, and of course that led to everyday 2 to 3 times a day unprotected. He pulled out, but i know that doesn't matter. Ive been bloated, and had morning nausea once, ive ate like a cow (more than normal) and i'm really snappy. Im supposed to start my period around the 7th but im always irregular..could these be symptoms of pregnancy or starting my period? Help(: