What does it mean if you had 2 dark lines on your clear blue pregnancy test but they were far apart it was not a digital test?

Two lines in one window is a test that did not perform well, unless is a definite + or a faint + . You should have a - in one window that shows that the test works well. You can send it back and they will send you a new one. Buy anothre brand in the meantime and repeat it. All the best.