Hmmmm...I think the EWCM is exactly why FF picked that day....if I say I had it another day, it marks that as my O date. (CD36 to be specific)
I don't really treat my PCOS yet...I will be put on Clomid, likely, in June. That's when I will see my doctor again. She told me to try for a year...it will be a year at the end of March, but I just got the doctor in June

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Thanks for the input though...I am considering changing my O date myself or something...I dunno.