Did I miss my smiley face?

I've been using clearblue ovulation tests (20ct) and I am now on cycle day 22 but I am still not seeing a smiley face. I understand that I'm not suppose to read the lines on the test but when I first started testing the test line was darker then it is now. About cycle day 17 the line got extremely light and now when I test there is hardly a line where the test line should be and even the control line is a lot lighter. Did I miss my ovulation day? I do use fmu.