Why is this happening????

Davisha

So I have been tracking my Ovulation since January. I have not gotten any good signs until February 11,2021 . On that day I tested my Urine and my test came back a still smiley face and it stayed that way for 3 days. I then tested again February 14 and got a negative empty circle. So today February 17 I decided to take another just for fun , my test came back flashing smiley face. What does this mean is something wrong with my test ?