2days late.

So idk what to think i only had sex once this month and it was a week before my period was due we were drunk so it was unprotected but I don’t even know if he came or not if he did it would’ve had to been in me because I never seen him do it anywhere well now it’s a week after and my period is late only by two days currently and i thought it was going to start a few days ago but it didn’t i had slight cramping but nothing ever happened what are my chances of being pregnant?