Ovulation test

The first one was a couple days ago but it was the same color when I took it. It's supposed to be the same color or darker to be positive. The one on the bottom is the one I just took. It's not quite the same color but it's a lot darker than the others I've taken which are always as light as the top one. Anyway, I'm wondering if you ladies would consider this positive as well?? Thanks!😙