Patterns?

Natalie
Wondering your thoughts on my chart. FF said I o'ed on cd21. Glow said I did on cd11. Glow predicted my period for yesterday (not here) and FF has it predicted for Wednesday the 14th. Pretty sure if I o'ed on cd21 we probably missed it bc we bd'd 2 days before and have been taking a break since lol. Thinking I don't want to bother with this next month...
Also does anyone see any sort of pattern? I'm so confused by all of this haha