Prego after birth control?

Morgan • Professional photographer who loves to travel!
Has anyone ever gotten pregnant after being on birth control for over 3 years? 
I've been on birth control for a very long time and I've been with my boyfriend for almost 2 years ... I've had to pee like crazy today and I don't miss a pill. We maybe have sex twice a week due to our different work schedules.
I've never had to pee this often and I have only had one glass of water so far...
Maybe the cold mediation I'm on? I hope .
My last period was over a week ago