Faint Line Update- Negative Digital?

Courtney
Yesterday I had a faint Line- today it got darker (today's picture attached). I also took a digital a few hours before this test and it came back not pregnant. Picture below un-retouched. Is it possible I just don't have enough HCG for the digital? I feel like there is definitely a line. This picture taken after 5 minutes as test suggested. Not knowing is driving me a little crazy. Has anyone else had this happen?