I'm on CD20..  I usually get my peak smiley face around the norm.. cd12-15.  For the past week I have been getting the blinking smiley face.  This is the first time it has happened & I read a few posts that this has happened to some gals.  Should I keep testing?!  Does that mean I'm ovulating late.  It's confusing cuz it's supposed to detect the most fertile 4 days..?!