Dollar store tests?

Andrea • Married for going on 5 years, have 2 boys ages 9 and 5 and trying for our last, praying it's a girl this time lol
Hey ladies, I've been using the dollar store dye tests. Has anyone used these? I'm not sure they work like they are supposed to, or I'm just in serious denial. That's probably it... anyway if you have used them how long after dpo did it work for you? I'm 12 dpo today and it's still negative but I don't feel normal. Thanks for any info :)