Positive or Negative

Before anyone saids this is an old Test! Yes it’s an old test taken about 5 hours ago! When I took the test a saw a faint line and when I looked at it now it got darker. Could this be a true BFP or just an indent. It has color to it! I even did the water trick where you drop a few drops of water on the test to see if it’s an indent and the line is still there!