Pill drama

So to start off I take my pills religiously and I go through the health department to get them well when my period was ending I called the Health department and they could not see me until like a week later so I had no pills me and my fiancé still had sex and be pulled out according to the app I was only at a three percents chance of pregnancy and when it showed the green dots we didn’t have sex at beside the first green dot but know where near the ovulation date. I’m sorry this is such a ramble but I needed advice so what are the cannces of me getting pregnant