Ovulation strips!

Heya, I need help!! I’m doing daily ovulation strips and logging on the glow app along with my temperature. When I first do the strips the result has been getting stronger daily. Then I go back to the strips after 15 mins and the results all seem to be the same. Everyone else I’m looking at the strips stay how they are when you first do them. Yesterday it said I was in peak ovulation (3rd April) and now it’s confused me as they all look the exact same