Immune to the pill

Is it possible to become immune to the pill..? I read a post on here that someone became immune to the hormones and birth control stopped working.

Has this happened to anyone? I’ve been on the pill for 3 years (I’m only 19 and do not want kids), so i’m trying to see and make sure. How would I know if it isn’t working anymore, etc? Thanks.

I also want to mention I take it perfectly, never take antibiotics, and we use the pull-out as well. (Not the best method, but I take the combo pill.)