Confused, please help

Sooo, my period lasted 8 days căușe i took plan b last month, it usually lasts 6-7 days So ITS No big deal. But i had unprotected sex on the third day and At the begginig of the fourth day after my period ended, cause i stayed overnight. So it was the 11 and 12th day of the cycle … he always peed after finishing and he also didn’t came inside but i saw a white consistency between my legs.. He Said that it wasn’t His c*m, but mine. Is it possible? And also, is it likely for a pregnancy? I hope not!!!