Positive Pink Dye followed by Negative Blue Dye??

[lindsvancamp]

Hi Ladies!
So my AF is due Wednesday. I have been feeling kinda of different and nauseous so I took a cheap pink dye test yesterday. it was in the afternoon so i was expecting a negative. Instead I definitely had a faint positive. It wasn't an evap line because i could clearly see the line, it just wasn't really dark. So I of course got excited, but then told myself i was going to test again in the morning to make sure. This morning.. on my second pee- (I wake up in the night to pee a lot) I tested with a blue dye cheap test -target brand and it was negative?
Has anyone ever experienced this or know anything about it? This is my 3rd cycle TTC after BCP..

Thank you!

 

[babyvaughan]

Pink dyes normally are positve at 20-25
where most the blue dyes are 50+ sensitivity.

So I wouldn't be discourage by this.

What was name of the pink dye, and what was the name of blue dye.
I'll tell you there sensitivity rate!

 

[lindsvancamp]

Thanks for your response, but I think I'm out this month as I started to spot which means my AF is coming.
I think the pink dye test could have been expired and possibly gave me a false positive. My sister in law gave me all her old tests after she was finished having her kids. It was a cheap one and I'm not sure of the name!
THe blue dye test was Target's brand.

 

[babyvaughan]

Oh okay well for your next cycle buy pink dye they are most sensitive and less changes of evap! But ofcourse check exp date!