Hello my lo is slmost 10 months old and we want to ttc later this year so have been taking a check of my periods in preparation. However since giving birth my periods have changed enormously and my cycle varies between 25 and 35 days which had worried me enough to use opk's just to check. Last month I used them from day 12 until I got my period (which came early). No surge detected. This month started using them on cd8 but still no sign of s surge although i am only on cd13. Not a test line at all let alone a faint one! I am now panicking that I am not ovulating at all! Can this happen? Prior to giving birth my periods were regular as clock work although I had a short luteal phase which was corrected with vitamin b6 and I conceived in just 3 months and opk's with success. I am not breast feeding and am taking b6 again. What can be happening? Has anyone experienced this and has any advice?