Am I pregnant?

I had sex and he ejaculated inside me. He came inside me 4 or 5 times before my period started. Okay this is kinda hard to explain. But please bare... so after he ejaculated I got on my period after 7 or 8 days. And today is the day I'm suppose to be on my period but I haven't got it yet. I'm just curious to know is it possible to get pregnant even after getting on my period. Ps that was the only time I had my period and this was suppose to be my 2nd cycle but I haven't got it yet.