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Old Sep 22nd, 2017, 11:10 AM   1
Trying to conceive (TTC)
New BnB member
Join Date: Sep 2017
Posts: 1

Positive blue dye but negative pink dye???

I took a blue dye test last night (not FMU) and I got a faint positive - the thick line showed up within one minute - its not an evap because the line is as thick as the control line & is blue in color. I ran to Walmart and grabbed some pink dye first response tests - took one last night, negative and took one this morning with FMU and also negative.

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Old Sep 22nd, 2017, 11:29 AM   2
Trying to conceive (TTC)
Active BnB Member
Join Date: Feb 2017
Location: SF Bay Area
Posts: 431
How many DPO are you? It's possible that the first response isn't as sensitive as the blue dye. I know people have been having problems with first response since the sensitivity can be off on them.

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