Help! Did I ovulate already or am I still going to??

I took an opk test this morning and it looked as dark as the control. I took another a couple hours later and it wasn't as dark, took another tonight and it looks light again! Idk what this means. I'm supposed to ovulate the 2nd. Did I already ovulate or am I still going to!? I'm completely new to opk and trying for #1! The top one is from this morning.