Sex while ovulating

Okay so. My period app FLO, said I start ovulating on August 30th and I had unprotected sex on August 28th (2 days before ovulation), he pulled out and all. But what are the chances that I could be pregnant ? My next period is on September 14th . Please I don’t want to hear the “that’s how people get pregnant” “get on birth control if you don’t want to have kids”, or any other snarky comments. I just want to know if anybody has gotten pregnant that way before and if there’s a possibility i might be pregnant even though I didn’t have sex on the day of my ovulation specifically.