Bleeding please help!!

Laadi
So at first it was just brown discharge and as the days go by the bleeding is getting heavier and heavier. I'm on the 5th pack of birth control and usually i'll start spotting on the last 7 pills and get my period but i still have another 2 weeks. I'm kind of scared. Also, i'm not pregnant! Is this normal for 5 months on BC?! HELP!