Unprotected sex and pull out method during ovulation - chance of pregnancy?

I went off birth control two months ago because I couldn’t stand the side effects anymore (I was on it for about 4 years and it kept getting worse), and my boyfriend and I have been having unprotected sex since then. He always pulls out when he starts to feel an orgasm coming and never waits until the last possible second; he’s very self aware and careful about it. We both knew I was ovulating the past week or so and planned to abstain from sex entirely, but yesterday and the day before (if the app is accurate, that’d be the day before ovulation and day of ovulation, but my last period was the first input I’ve used on this app so it might be off by a couple of days), we had sex. He pulled out every time 10-15 seconds before ejaculation and there was enough time in between each ejaculation that he would have peed several times and flushed out residue.

I felt 100% confident about using the pull out method last month because we didn’t have any sex during my ovulation window, but now I’m getting in my head a little bit. I know the chances are still only ~30% at most, and significantly lower since he didn’t finish inside of me, but it’s still a scary thought.

EDIT: just completed my log and apparently white discharge means low fertility, so that’s good too