white line on first response test??

[My3SweetPeas]

I took a dollar store test this morning and there was what I thought a very,, very faint line. I really had to squint to see it. So I decided to take a first response test and control line showed up right away along with a white line??? What is that?? It showed up as soon as the urine went across the window. There is no color to this line at all. Is this an evap line?? If so why did it show up right away?? I don't know what to think. I guess I will try again in the morning.

[TTC5]

Sounds like an evap to me.

[girlmom]

could be an evap... how many dpo are you? cause if you are like 8 or 9dpo it could very well get darker.