Does that mean it could've happened Sat? I haven't used opk so it's new to me but was wondering if your cycle might help me gauge mine ridiculous i know as I have no clue and no ewcm this month either. Using the crudest of ov calendars, I was predicted ov last weds so a big diff there!
Will be interested what yours says this evening too. If yours was sat, sounds like you've given it a good shot this month. Quality, not quantity remember!