How long did you get a flashing smiley face for?

I started testing with the Clearblue Advanced ovulation test on CD9. I got just a circle that day then from CD 10-13 (today is CD13) I’ve been getting the flashing smiley faces it’s been 4 days now. I’ve heard mixed reviews on these OPKs and I’m starting to wonder when I’m going to get my peak result or if I even will. How long did it take for you to get the solid smiley face? We’ve been BDing every day since CD10 as I really don’t want to miss it this month! I also don’t really know when I ovulate because my periods are irregular ranging from 28-45 days. Thanks! Baby dust to all, hoping for a BFP right in time for Christmas.