So confused...? Can anyone explain This?

Question

Ignore the poor charting but just trying to understand it.. today CD13 was so much darker than CD10 and 11 but theyre apparently Peak and High.. today is Low.. 
can someone explain this to me please?
Was CD10 really my peak?! 
Thank you

Answer

No, those are all negative. A positive opk the test line will be as dark or darker than the control line.

Answer

Yeah it's the way the photos are taken that's making it react. There is a shadow line and also a weird squiggly thing on the high test

Answer

They’re negative
The one that’s says peak, the app has probably compared the control line with the shadow line next to it

So confused...? Can anyone explain This?

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