Finally!!! But how true are red dye

Cortney
Okay so I bought this little gem today on vacation.... I am three days late and every time we have sex I bleed, well we had sex today and I bled so I thought I started but then it stopped.... So I walked down the strip and bought this and yes it's one of those dollar general store red dye tests so I'm just curious as to how accurate they are bc I'm still mildly cramping- I plan on taking another in the AM or in a few days but just wondering if anyone has had any issues with red dye.....?