I am very confused. My last 2 cycles were 29 and 31 days. This cycle showed no peaks on the CBFM so thought I was out of luck - I got loads of highs though. Yet still no AF, I tested cd31,32,33 all BFN on clear blue and first reponse as it really should have arrived and I had big cramps on cd31. Just wish it would show up so I can start again, but nothing ?????