Hi Meg
I just looked at your test photo, theres a line there.
Try getting some of the "Confirm" in stream tests (I got mine at Coles), or "First Response" in stream ones.
Im STILL (nearly a week after my bfp) unable to get more than a shadow on tests that look like yours, but on the First response in stream ones, my line is the same colour as the control, and the Confirm ones are that one that gave me the BFP.

If you feel you need to try and put your mind at rest (though there IS a line there), try the in stream ones...they may give you a darker result.