Wondfo ovulation strips

Nicole🐍 • Pregnant with #1. Have endo & cysts. Baby dust to everyone✌?️✨✨✨
I decided to give the wondfo strips another try. I'm sort of confused. The most recent test is much darker than the previous ones but not as dark as its control line. I am not ovulating yet right? Does this mean ovulation may be coming? 
Btw, I'm not sure if this makes a difference but I have PCOS and endo.
Thanks!
Picture below... The very bottom strip I just did (you can tell by how much darker it is than the others). The strips above are from previous days.