I'm just having a rant really.......i've always had fairly regular periods and been on HRT for 2 years and they were still ok apart from a couple of "odd" months but the last couple of months have been crazy. I'm on day 36 and have had backache, stomach cramps etc on and off for days but still no period!! Last month it was 32 days, the one before 22. It's driving me mad and I've had to buy pregnancy testing kits today just to be certain. How do people cope with this, it's messing with my head a bit now.