Birth control problems

I've been taking Ashlyna ( 3 month birth control) and when I first started the pack I was perfectly fine. I'm about two weeks away from the "period pills" and I have started bleeding and cramping real bad. It started out as spotting and now it's full blown bleeding. I'm getting like clots that come out but they are kind of small. The cramps are worse than any period I've ever experienced. I don't have the extra money to skip a day of work to go to the doctors. Has anyone else ever experienced this?