Menstruation due in 2 days but severly sore breast cramping and tired bbt temp high 98.5 or more Could I be pregnant?

Yes, you could be pregnant. It is also common to have sore breasts prior to menstruation, so it's hard to say. It is also normal to have a high BBT (98.5) prior to and even in the beginning of your next cycle, so it doesn't really indicate pregnancy any more than it indicates an upcoming menstrual cycle. If your period is late, and your BBT is still high, then that is a more promising sign of pregnancy, and you shoult take a HPT!