Hi, I used the Clear Blue Digital test with the count down. It counted down, flickered, had a pregnant for about 3 seconds and then went to not pregnant. Out of curiosity, I opened up the test to see how it worked and found what looked like a typical test strip. It had the normal looking test line furthest from the tip and a feint second line about .5 inch from the test line. Do all digital tests have two lines or could this be an early positive?