With some home pregnancy tests, one line means the test is negative and you're not pregnant, and two lines mean the test is positive and you are pregnant.

What if second line on pregnancy test is light?

A very faint line on a pregnancy test usually means that implantation has occurred and you're in the early stages of pregnancy. But you'll want to test again a few days or weeks later to see if that line has become thicker and darker, meaning your pregnancy is progressing — and you can safely start getting excited!

Can 2 lines in pregnancy tests be wrong?

Confusing Evaporation Lines

Many tests show two lines when hCG is detected and one line when hCG isn't detected, or a plus or minus sign. For the line tests, sometimes, a faint-colored second line appears. This may represent an early pregnancy or may simply be an evaporation line.