Chance of pregnancy?

I’ve been on Yasmin for a few years now, unfortunately with the past month I’ve been skipping a bit of days (unintentionally), my 7 days off started a few days earlier because of the missing pills. So I decided to just let it be and start the new pack when i would have if I did it correctly. (So an extra week of no pills even after my “period). I had sex lastnight. Hubby came inside. And according to the app i started my fertile window and I’ve had an increase in discharge. Even tho I know we aren’t supposed to ovulate on BC. What’s the possibility I can get pregnant? I know most people are off BC months - years before they conceive.