This cycle I started using the Clearblue

Digital Ovulation and I started testing a little early than I probably should have (went by my shortest cycle in the last 3 months rather than just my previous cycle.) I started testing CD 6 and I got a blank circle the first day and have gotten the blinking smiley for the last 10 (today is CD 16). I know they say you should stop after 9 or 10 days without a peak, but I was wondering if since I started early I should continue?

I know I had a maturing follicle on CD 13 due to an ultrasound, it was about 15mm. I know they grow about 2mm a day..

I’m just afraid I missed it or won’t ovulate.

Any advice/thoughts?