How accurate

Are dollar tree pregnancy tests?

My period was due today but stil nothing

I have taken like 4 blue dye test and each look positive within the first couple minutes

But the dollar tree ones dnt ever look positive.

I’ve also taken a first response and seems like a vvvvvvvvfl

I’m freaking out

Because this morning I had cramps like my period was starting but wen I went to wipe there was light pink blood mixed with clear disharge.

Should I not be so concerned because the dollar tree were negative????

What do u think