If you aren't charting/temping, this would be a good reason to start. It's the reason I started, when CD30 hit and my period was nowhere in sight. I also threw in OPKs last cycle when temps hadn't confirmed O by CD27.
First cycle off BCP - 61 days.
Second cycle off BCP - 44 days.
Currently on cycle #3, we'll see how it goes.
It's a mind game, and takes a lot of patience. If you are charting/temping or using OPKs, you can at least start making the most of those long cycles.