Af arrived no positive opk

Amy

So this is what my chart looked like for the last month at first as I have pcos and don’t have regular cycles my chart stated wasn’t going to ovulate this month and would next month, I still took daily opk and temp to check but got a few nearly positive but never a full positive- today possible af arrived(very light red/brown) usually when I have af it’s very heavy for few days never experienced this before!

has anyone else experienced this??