According to Negative Pregnancy Test, two dark blue lines on an Accu-Clear pregnancy test mean that the woman who took the test is negative for pregnancy. There are two screens and the first line means the test is working. The second shows the test was negative.
According to Swiss Precision Diagnostics, the Accu-Clear pregnancy test can detect pregnancy as early as the first day the woman misses her period. In clinical studies, the test has an accuracy rate of more than 99 percent. Negative Pregnancy Test says that a negative pregnancy test result can also mean that the test was taken too early. If the result is negative, the website recommends repeating the test after two to three days.