Although sometimes identified as a false result, the evaporation line should not be confused. Put simply, blue line pregnancy tests are a type of home pregnancy test you can. Some brands use blue dye in.
I know I know, Blue dye! Line or Evap?! Trying to Conceive Forums
Evap lines aren't an indication of pregnancy;
A faint line on a pregnancy test usually means you’re pregnant, though it is.
An evap line may be grayish or a very light blue on tests that use blue dye. There are a few ways to determine whether that second line on your pregnancy. Rather, they often mean you waited. A faint line on a pregnancy test can be tricky to see.
Blue dye tests typically use a different type of indicator dye that is more prone to evaporation. On a blue dye test, the line can appear as gray or even a lighter shade of blue. Evaporation lines are colorless streaks, not faint lines. On a pink dye test, an evaporation line may look like faded gray.
They typically appear if a.
The darker positive line is more definitive, whereas blue dye tests.
