I am 2 days late and took this test, at first I thought it was a definite negative but when I went back and looked later..before taking this pic I thought I saw a very faint white line, idk if it's just the piece behind the plastic or if it's a complete negative or if my levels just aren't high enough? It's a first response so I think it should show pretty clearly by now. Conception date would have been December 3rd. Can someone put this in negative or give me their thoughts on this? Thanks!