Did I not ovulate? Or could I have just missed it??

Soooo discouraged. I’m now on cd 18 and my opks are getting lighter. The darkest line I had I tested @ 11:30 pm and couldn’t test til next day until 5:30 pm. Do you think I could have just missed my surge there?? I had right ovary cramping and sore boobs and nipples the day after cd 16 test. But when I uploaded pic y’all all said it was negative…I don’t think I need to keep testing bc at this point I think I’m out this cycle.

Cd 16 test (darkest I had gotten before it started lightening back up)