I have been using Clearblue digital and Clearblue non digital ovulation tests for about 7 days now I started testing right after my cycle which is a little bit soon to start testing... I know but I wanted to know exactly when I started ovulating. as soon as I started taking the tests the test line was visible and a few days went by and it would gradually get a little darker last night and this morning my lines have been very faint more faint than they usually are..... I never got a smiley-face on my ovulation test so I know that I wasn't ovulating.... but why would my test line gradually get darker day by day and then one day just be almost invisible ...did I miss my chance of ovulation? Even tho ig said negative still....?