OVERTHINKING

so me and my boyfriend had sex about 2 weeks ago, and we used a condom and right when he came he pulled out, but technically he came inside me but with a condom. The only reason I've waited so long to have sex is because of the fear of getting pregnant. I'm maybe overthinking this but I haven't had any symptoms of pregnancy. And my period is supposed to come after next week but I'm so scared. I definitely know that if I am pregnant I am immediately getting an abortion no matter what. What are my chances of getting pregnant?

Update: thank you guys for the comments it really eased my mind. I'll definitely try to be a little more stress free (: