I have been off the pill since the beginning of the year and my periods have been very erratic. 45 days, 27 days, 33 days have been the last three. I am trying to track my cycles at the moment and track ovulation. I have been doing OPKs. Am I right in thinking I probably had the 'surge' on CD 13/14 and ovulated then? I'm so annoyed I didn't test on those days! I had an almost(?) positive on CD12, and 15/16 have been decreasing since.
Any experts?