how possible am I to get pregnant??

my period ended Sunday the 6’th of this month, and I’m supposed to start ovulating the 12’th. my boyfriend and I had sex on the 8’th and he came in me. how likely am I to get pregnant?? like I’m a little scared but also I don’t think I’ll be pregnant. and it’s too early to tell, I just hope someone can give me a sort of answer.