Confusing OPK results, please help!

[Aimsterfl]

I was wondering if you ladies could give me your opnion on this. Last month, I got a positive on my CBFM and using the clear blue digital OPK's the same morning, I also got a positive the day after with The OPKs. Yesterday I used the digital opks in the afternoon and got a positive. Also got a positive later in the evening. This morning negative Today my fertility monitor does not show peek. I was kinda suprised and disappointed. Do you think it was a true LH surge yesterday? Or some whacky thing. The timing of the positive did match up with last month.