is this a cruel joke?

Meg
My cycles have suddenly gone from 28-29 days to 35-37 days.  So for the last few, I get excited thinking I'm preggers and pee on the sticks sometimes twice a day all with BFNs.  Why on earth are they lengthening and why do I still insist on testing and re-testing and re-testing?  Ugh.  Sooo frustrated.