Curiosity.... I'm 6 days before my period is due.

I took a 1st premiere response test this morning. I am 6 days till my period. If I pick up the stick and look close there is an EXTREMELY faint second line. Has anyone had this happen? I can't tell if it's an actual second line maybe trying to peek through but it's too early? ...or if it's just the line that didn't show but if I look a certain way I can see it? (I don't know how these things work!) it's hard to see in the pic so I added one with flash and one without? HELP!