is this my peak?

Last month I started using ACCUMED ovulation strips and got pretty good lines when I thought was my fertile week. This month I tried clear blue advanced and today I got my first solid smiley 😀! However I did the accumed teat strip and it doesn't seem as dark as it has been on previous tests. I'm trusting the clear blue, but does anyone have any personal testimonies of using either of these and getting different results?