Of course - please ask me anything you like, I am hoping it won't be the case for you and have to reiterate some of the other comments, I was a mess yesterday as I don't think my line progression is where it should be and after having a day of feeling down have decided can't do anything about it, so it's a waiting game unfortunately. When you test so early there can be so many factors which can cause a test to look lighter, if you've drunk more, if you haven't drunk enough and are dehydrated even, time of day take test, climate temperature you take the test, medication you take in etc etc. I am learning the hard way that lines can vary without it meaning anything good or bad.
But for me both times I started to bleed fairly soon after the lines started to fade to nothing (no medical intervention of any kind was required for me) It was like a very heavy period with a bit of clotting. My lines didn't really progress past what I would call faint both times, so went from very faint positive and only got little darker and then lightened over the course of a few days. The bleeding started only a few days past when i was due my actual period as i had tested early and found out i was pregnant before AF was due.
You are in my thoughts and please ask me anything else, I hope this helps in some way. Thinking of you and hoping for a good outcome for you. xx