Pregnancy scare

Hi, I had sex with a 22yo girl I’ve been seeing, and I wore a condom, and came in her with it on. However when I pulled out we noticed it had a rip in it. I obviously couldn’t tell as I would never come inside someone not on birth control. Anyway, we immediately went to drugstore and she took plan B. She says her period ended on the 21st of October, so it’s very likely when we had sex (November 4th), she was done ovulation. Overall the risk of pregnancy seems very low based on using condom even though it ripped, time of cycle, and plan B.

However, I keep catastrophizing that she could’ve thrown up the pill for some reason, or she wouldn’t get an abortion even though she’s stated like 100 times that she would, because obviously this was a genuine mistake and we do not want a baby at all whatsoever. But it just can’t stick in my brain.

I feel awful about this whole thing. If anyone could provide some reassurance, that would be great.