Dollar tree ovulation test

I know the dollar tree pregnancy test works but has anyone taken a dollar tree ovulation kit before? I don’t test often but whenever I do decide to test around the 10 or 11th day of my cycle I start seeing dark enough lines that let me know I’ll get surge which normally comes the 11th or 12th day, but I just got a dollar tree one (first time) and that line was barley there Like it was soo faint, unless I missed ovulation, but I don’t know my body is like clock work. I’m on cycle day 11 today.