Chance of Pregnancy on Cycle Day 20?

I use three apps...Glow, which said I had a 2.7% chance, Easy at Home which read a negative ovulation test result, and an Ava bracelet that said “Low Fertility.” My husband and I had sex approximately (if these apps are correct), six days after I ovulated. I know an egg is only good for 12-24 hours. The condom broke and I am scared, I couldn’t afford a Plan B pill. What are my chances of still becoming pregnant? Any advice is appreciated. Thank you.