4 days of blinking smiley face


I’m so confused, I’ve been using the clear blue digital ovulation kit and this is my 4th day of having an LH SURGE with the smiley blinking face but not an actual positive ovulation with a non blinking smiley face. Is this normal? I also used another ovulation kit just to make sure this isn’t broken and it also detected a slight surge! So confused. Is this normal?