W/O going to a doctor.. could I be infertile??

I’ve gotten pregnant before but had to get a abortion two years ago (rape don’t judge) my current bf and I been together since April 2017 and in February this year, since a few days before ovulation til the day before my period, my bf was cumming inside me everryyy day sometimes more than once and I never got pregnant 🤷🏻‍♀️ I was so surprised I wasn’t I didn’t have extra stress or any problems. Is this just something that happens or should I go to the doctor and check?

I don’t use condoms, have a shot, take Bc, have a uid, etc

Edit: this is not the first month trying, I’m not trying or preventing I’m letting everything come natural and ready for any outcome. I’m just like wow some people only takes one day and we did it 20+ days and nothing lol thank you guys tho

FORGOT TO MENTION IM 19 1/2