Help- Positive Ovulation Test?

This is our first month of TTC. I cannot tell what days would be considered “positive” for my ovulation tests. I know it’s whenever the test line is as dark as or darker than the control line. But, I don’t think my test line has ever been darker than the control.

From what I can see it seems like July 27 or August 7?? Need another set of eyes. Can y’all tell from the pictures what days are positive?