Verkkohere's how to tell the difference between a true positive pregnancy test and an evaporation line, plus tips for avoiding an evaporation line on blue dye. Verkkothe blue dye pregnancy test evap line is a faint, bluish line that appears between the control and test lines on the pregnancy test, usually after the. Verkkopositive tests carry a plus sign, two lines, or an explicit message like “pregnant” or “yes. ” the tests that show two line results have two hidden. Verkkoone of the most common lines people may see is an evaporation line (also known as an evap line), which appears on certain types of pregnancy. 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.
