Ovulation tests

Cindy
I've been taking ovulation tests since the second and they've been getting darker, but this morning I took one and it was a lot lighter. About as light as the first day. It never got as dark as the control. I only test once a day in the morning and I realize it's possible to miss the surge that way but normally mine is as dark as the control for a couple of days. I'm just wondering if this means I didn't ovulate or what. I'm going to keep testing this just makes me stress even more though. Why can't I just be pregnant already 😐 comments and thoughts appreciated!