Clearblue Advanced Digital Ovulation

Has anyone just had a completely bad experience or false positive with these tests with the days of blinking smileys and 2 days of solids. I recently had a miscarriage and had my normal AF on March 10. I got my period exactly 28 days after the start of my very early miscarriage so my cycle seems pretty normal again. I had a positive opk on cycle day 10 and 11. And of course we had intercourse those 2 days as these are closer to when you are actually ovulating. But anyway...