Help! What’s up with these lines?

Crystal • TTC #1 since Jan. 2018, 3 BFN IUI cycles, 2 cancelled IUI cycles, 1 early MC 10/30/18 👼🏻Hoping for our 🌈

My cycle seems all over this month. I got 2 peak days on my CB digital advanced sticks (starred in pic of cheaper sticks). Which day did I O? I’m guessing CD 21, but shouldn’t the test lines be getting lighter by now?