Negative ovulation test but still showing high chance for pregancy

Hey everyone. I have a question

So my husband and I decided to start trying for a baby at the beginning of the month. I started taking ovulation tests during my fertile days, I have been using the clear blue advanced test (I think that’s what it’s called). Basically, I only had a day or 2 where the test was completely positive. Meaning it was flashing a smiley face and the test line and control line showed a positive result.

Since my ovulation day, the smiley face still flashes which indicates a high chance for pregnancy, but the lines are negative.

Has anyone else experienced this? Does anyone know what this means??