I'm on birth control and have been for 5-6 months at least. I've never really taken birth control properly up until I became sexually active. My last pack, I was very inconsistent and had a lot of painful break through and decided to skip my placebo and start a new pack. I have taken this pack correctly and only missed one day and the next day I took two at the proper time. The day before I was to start my placebo I had sex. We did not use a condom, but used the pull out method. I havent been bleeding much, but I've had regular period cramping, only light brown and a little blood.