I have always had excellent, and true, results with the Dollar Tree tests. If you read it within the time frame, after 3 and before 10 min. you will get an accurate result. It will be stark white if it is negative and will have a pinkish/purplish line if positive. They have always been accurate for me and they are only a dollar!!! You could by 10 for what you would pay for 1 decent "other" brand. Good luck!
you should buy a first response,or a digtal you will get a better answer
I would say you should get a different test. Just to be sure. You will probably get very mixed opinions on whether it is positive or negative. I would avoid the blue dye tests since they often get evaps (from all I have heard). And I think that the dollar store tests do it too (from my own experience). My personal favorite is the First Response Early Result. Good luck.