Line eye? :(

So myself and my partner have been trying for a while now. We’ve had two miscarriages but are now finding it near impossible to get pregnant again. I’m 5 days late, I took a test and saw a very faint line as shown in the picture; however ten minutes after taking the test the line seemed to have vanished, in the time frame there was a faint line. My partner saw it as did I. Have we got line eyes? Are we trying so hard that it isn’t going to happen? It’s breaking my heart trying and always coming up with nothing, my doctors don’t seem to want to do anything to help and I’m close to giving up. Any thoughts? Xx