I have been on Orthotricyclin Lo for over a year now and this month i had a little slip up. There are 3 weeks of active pills; white for 7 days, light blue for 7, and dark blue for 7, then there are the green nonactive pills. During the first week i was missing a white pill and my drs was closed and i didn't have another pack to borrow from. I had extra light blue pills so i took one of those in its place (i took 6 white pills then 8 light blue and 7dark blue). I am now currently not taking any because this is the week my period is supposed to come. It usually starts today(wed) in the morning some time, its now going on 6pm and i'm getting nervous. Does anyone know my chances of getting pregnant from the change of pills? I'm hoping its just a little off schedule this month...I've also got another question, i know that you don't have to take the nonactive pills but what are your chances of getting pregnant during that week? Any comments would be much appreciated!!