What are my chances

I absolutely do not want to get pregnant right now. I’m on the pill and take it perfectly every morning when my alarm goes off for it as I get ready for work. I only have sex like maybe 4 or 5 times a month with my boyfriend. Long distance and I’m a chicken about getting pregnant. Anyways, when we do have sex he always wears a condom and pulls out before actually finishing. So this is where I get crazy, I actually bought the cheap ovulation test from amazon and test once a day to make sure I’m not having a surge in hormones that would cause ovulation. I don’t know if they even work when your on the pill. Anyways, what are my chances of getting pregnant. Please no mean comments