This is my first month taking OPK and my fourth month charting. We are TTAS. My first three cycles (after having DS) seemed pretty in line with how they were from before I got pregnant (28 day cycle with O around day 14-17). I added OPK this month and now I am wondering whether I am "really" Oing. Today is day 14 and temps seem to be consistent with my pattern but I have yet to get an OPK +? I have been testing up to 3 times a day (a friend showered me with her extras so I have PLENTY). I am confused - is it possible I missed my surge? Am I doing the tests wrong? Is the fact that I am still nursing DS 3 times a day screwing with my hormones? Any charting suggestions or input is appreciated.