Stacked pills, long period

[windowsandvents.livejournal.com]

At the end of my previous pack of hbc pills, I decided that I did not want to have a period this month. I stacked my birth control pills, skipping the placebo pills. I have done this before and it had always worked. This time, about three pills into my new pack, I started spotting, which quickly turned to a period-like flow. Two weeks later, I am still having my period. Why is this happening, and how do I make it stop? I am on Ortho Tri-Cyclen, if that is relevant.