Could I be pregnant ???

I had sex unprotected on the 4th day of my cycle and ovulated on days 10 and 11 and my period only lasted 5 days. Could I be pregnant? I haven’t taken a pregnancy test yet because my period is due to come on until next week but I’ve been having weird stomach cramps and itchy breast and some nausea but nothing more. But I’m just wondering could I possibly be pregnant??? Or is it waaay to early to tell? Also to add today is considered the 15th day of my cycle.