What are the chances?

I have been on the pill for almost 10 years now. I don’t take the pill at the exact same time every day, but usually around 2-3 hour window every day. I know how my body is throughout my cycle on the pill. Right at the beginning of my new pill pack I had unprotected sex multiple times with my boyfriend ejaculating inside me every time, and many times since then. About 2 weeks ago my breasts started feeling huge and super sore. I have been having these odd random light cramps. Also very tired to the point that I can barely keep my eyes open. A few days here and there I have had to pee almost 20 times without drinking that much water and also having tons of gas. It’s too early to test with a FRER, I have two days yet as my period is due in one week. I am just wondering how likely it is that I could be pregnant. My boyfriend and I are both okay with having a baby so we wouldn’t hate it if I was pregnant.

Also, I might add, that he has two previous children that were both conceived while on the pill.