Which is a possible positive?

This is this month's opks and I know none if them are technically positive as the test lines are all lighter than the controls but I was thinking my surge was happening on the 26th or 27th because I had all my usual ovulating symptoms and the test line was the darkest compared to the days before and after. Today I have been a little crampy and still have a little bit of ewcm, cp is still extremely high, soft and slightly open (was softer and more open on the 26th) and just did the last opk on the page which is looking like another possible positive.

What do others think?