Positive or negative pregnancy test?

I took a first response early result test Thursday morning. At first I thought it was negative but when I took a closer look, there was an extremely extremely faint line, almost invisible. You could see it when you held the test to the light. I checked a bunch of times to see if it was really there and each time I could most deff see the line. It wasn't colorless or gray it was pink, so I don't think it was an evap line. Is that still a positive or could it be an evap line. I saw the line within 10 minutes