What are the chances of pregnancy?

Hey guys!

So I'm just wondering what everyone thinks about this and what the chances of me being pregnant are since it's still too early to take a pregnancy test.

My boyfriend and I had sex 2 days in a row and it was on like the last 2 days of my period. He fully came inside me with no protection or anything. Usually we use either the pull out method or a condom but both nights we didn't do either.

I've always heard that you can't get pregnant unless your ovulating so we took the chance (because it feels amazing as most probably agree with lol) but now I've just kinda been thinking about it a lot and wondering if I actually could have maybe gotten pregnant especially since he did it not just once but twice.

It's been almost 2 weeks since it happened and I've been extra tired lately and have been having a lot of headaches. And last night we were having sex again and it was hurting a little like if he went too deep, it felt like cramping kinda every time he did it and that's not really normal, and I also don't know if that's a symptom or if I'm just over thinking lol.

I'm not too worried about it, we aren't trying but I know that if it happened we would be able to do it since we both have good jobs, a house together and already plan to have kids together just not right now, but still, like i said we could do it.

So what do up guys think? Really just looking for other peoples thoughts or other experiences!!

Thanks :)