Verkkowhat is an evaporation line on a pregnancy test? How does an evaporation line compare to a faint line on a pregnancy test? How can i avoid an. Verkkounderstand the difference between a faint line on a pregnancy test that means you're pregnant and an evap (evaporation) line that is colorless and. Faint positives on pregnancy tests appear within the reading window and are lightly colored, often indicating early pregnancy.
