Really confused??

So I took an ovulation test around 0400 this morning (8/21) (weird I know, but I work overnights). I don't know if I didn't pee on it enough, but the lines appeared to be almost similar, with the control like being a bit darker. Nbd. So I took another one around 1700 tonight and it was completely different. I urinated in a cup, held the stick in the urine per the package instructions, and it was a lot lighter.. did I miss my peak? My husband and I BD 8/19, and plan on it again tonight. I'm brand new to opks 🙃

The one with the wood door behind is the second test.

Also the pictures suck, so there's that. 🤷🏻‍♀️