will it ever stop?

I've been on bc for 3 months and last month I started spotting which then turned into a period. And I've been bleeding ever since. It's been a whole month already and idk what to do. My doctor said it's common and asked if I wanted to change to a different pill, but I decided to stay with the same one. I am contemplating if I should stop drinking my pills I even skipped the placebo pills and I'm still bleeding.  And no I am not pregnant.