How To Stop Continued Periods After Intake Of Tricyclen?

Hi, I am on tricyclen low and have been for approx a yr. I recently went on vacation in November and took an extra weeks worth of pills to postpone my cycle for one week. I got my period 2 weeks early and it has not stopped; I have continued to take my pills as scheduled, and am due to start my actual period on Thursday. If this occurs it will be 3 weeks and counting that I have been on my period. How do i stop it?