Has anyone used one? I have PCOS so OPKs are not reliable for me, plus I have a 2 yo DS who wakes in the night at odd times and occaional insomnia making BBT unreliable for me too. I was considering trying one of these in a couple of months if we haven't succeeded without additional help...I need something to help as I'm currently on CD43 and counting; according to my CM observations I OV on CD17... something is deffo not quite right...