Hi All....trying to work out my cycles and trying to double check I hit my fertile window. I started using opks last month and thus is weird, can't stop analysing it - The month before (Nov) had a 28 day cycle - was expecting similar as I got a positive peak on CB digi and some cm on cd12...expecting a textbook cd14 ovulation. But I ended up with a 31 day cycle. Could it be I ovulated later??? I was on a long haul flight on cd14 - could this delay ovulation? Or could this have been a chemical? Had faint lines on a test but thought it was evap line because got a neg with digi test. Dtd cd11,12,13 - not 14 due to flight. This month I got a peak CB digi (confirmed with normal opk) on cd14. Expecting o between cd14,15 latest 16. But yesterday got some small ewcm on cd17. When do you think I ovulated? Should I expect a 30-31 day cycle? Dtd on cd 8,10, 11,12,14,16,17 - so potentially missed an o day or hit one and/or day before depending on when o happened. Have I done enough to possibly get pregnant? I'm confused...and obsessed!