Been off the pill for 9 months, had regular 28 day cycles but since seriously TTC no.3 since Xmas my cycles have got longer and longer: 29, 31, 34 and this month I'm on cd 36 with no sign of AF of BFP. The really frustrating thing is that OPKs and CBFM are both detecting LH surges (at same time) but then my AF turns up really late which makes me think I'm not even releasing an egg when I think I am. Feeling dispirited, don't know whether to dump the CBFM and OPKs entirely. How can I get my lovely, reliable 28 day cycle and day 14 ovulation pattern back? I know it can take several months to hit the jackpot but the huge gap between my supposed ovulation date and AF is driving me nuts!