I've never used a clear blue test before. I forgot to test at 11 when I got up so I just tested with SMU. I started noticing the line almost immediately and it didn't go away. The first 2 pictures were right at the 3 minute mark. I realized I used flash and somehow that might affect how I saw it in the pic so the 3rd was at 5 minutes without flash. I'm stressing that it might be an evap or something...