Darn e.p.t pregnancy test!

Hanna
Hey ladies! So I'm about two weeks late for my period and took a pregnancy test today. I followed the instructions to a t, sat on my toilet for three minutes forcing myself not to look and when I did I looked to find a strong vertical line in the round window and a super slight on across it. I know that the plus sign means "positive" but what's the deal with the hardly-there line?