Unprotected sex

So me and my boyfriend had sex on New Years and according to eve it was the last day of my ovulation and he did ejaculate inside of me twice and the next day we had sex again and he didn’t pull out again. And I was aware that he did not pull out. Me and him has have talks about having kids together (he already has a 1 year old son) but we don’t try to have any kids. I am suppose to get my period in a week and I know it’s too late to take a plan B so now I’m just waiting to see if I’m going to get my period...do you guys most likely think that I’m possibly pregnant ?