Hello,
I've been using the clear blue advanced clear blue fertility device for the first time. It's easy to use and has a handy touch screen monitor. Ever since I started testing I've had only High readings. I'm coming to the end of my fertile window and today it was again High. Each testing stick has had a faint double blue lines but not strong. Anyone else had this? Does it mean I haven't ovulated this month? Trying for 13 months, 33.