I've always had my period heavy. Cramps, sore breast, everything you get when you pregnant. I had unprotected sex and my period is late.. Am I pregnant?

It's going to be possible. Try a pregnancy test. Be sure to follow the directions carefully. If it is negative, wait another week and see if your period is just late (which can sometimes happen). If still no period, try another test or you could see your doctor for a test there.