Did I miss my LH Surge?

I'm still new at using OPKs. I took one last month and it just happened to be a LH surge, but it was earlier than when I expected. This month I started taking them at CD9. This is what they're looking like. It's in order from top to bottom. I've taken one everyday except for today when I took one morning and a few minutes ago. So did I miss it? Do they keep getting lighter after ovulation is over? I swore I'd never be this person assigning, but here I am.

Top was a few minutes ago and bottom was this morning. It didn't show as well here, but the second one was darker than the rest.