Risks of pregnancy

Alyssa
My SO and I have been together for almost 2 years now and have never used a condom because we've both been tested and I'm on birth control (I have been for 4 years) I'm 19 years old and it seems to be a family curse to get pregnant at 19 and I haven't ever doubted my pill much until I recently turned 19 (hints the generations before me all getting pregnant at 19, it sounds stupid I know). He always pulls out and I take my pill every day. I wanted to track my fertile days in the <a href="https://play.google.com/store/apps/details?id=com.glow.android">Glow app</a> just to be safe and remain abstinent through out those days, but when I chose my Birth Control method as the pill, it did not show the fertile days because the pill keeps you from ovulating. I'm kinda lost here, if he pulls out and I'm on the pill, are my changes of getting pregnant still great ?