My boyfriend and I had unprotected sex 3 days ago and again 2 days ago. Both times we had multiple orgasms and he was still inside me. Yesterday I started bleeding like I would for my period except I would be a week and a few days early. I usually don't cramp during my period but I am now and my stomach feels weird. Like I'm hungry or something but I'm not. Or nauseous. Is it possible to be pregnant? Would the multiple orgasms have made it an even greater chance?

It's possible to be pregnant. You would not have any symptoms of pregnancy this early. If you miss your period, wait two weeks, then test with first urine of the morning.