What the heck 😩

New to ttc, new to ovulation testing. This is my second month using test strips, and I haven't yet had a test line be quite as dark as the control line. Am I not ovulating? Can I still ovulate without getting that super dark test line?? I feel like I was aaaalmost there on cd 20 , but I didn't get a pos the day before and my lines have been getting lighter today, on cd 21. What the heck? Am I missing something? Might I have gotten a positive on cd 19, but I just didn't test at the right time?

Same thing happened last month. I know I compulsively test so I'm surprised I'd miss it BOTH months. Any thoughts?