It's my first time using OPKs, and I didn't think they'd be this confusing! I used the target up&up brand (which I would NOT recommend due to my experience, btw). In the instructions it says to use FMU. So the pic below are tests from 4 days, all of which look positive to me (as dark or darker than control. I also took them in the afternoon each day and got all negatives. I think my urine was too diluted bc I'm not used to doing this, but idk. I just included the AM pics here).

Sooooooo.... when do you think I got my surge?? Did it even happen?? I was thinking the lines looked the darkest on 8/29, but they all look so similar to me. This morning (8/31), I also used CBE digital and got a negative. I wish I had used it all along, bc now I don't know if I ever had a surge! I've had some EWCM & my cvx has been high 8/22-8/27. CM has changed today and cvx has been lower yest and today. Sorry for the novel..... TIA for your help!!!!