Oh I'm so sorry, you must be so worried. My bleeding at 6weeks did end in a MC, but I know other people whose pregnancy continued ok after bleeding, so there is hope.
I was too early for a scan but it was clear from blood tests that a MC was inevitable, you could ask your local EPU to do these for you. (I was also advised on MN to use a CB or FR digital to see how many weeks it thought i was- obviously if my HCG as falling this result would be fewer weeks than it should be).
My MC started as brown blood and then went to red.
Not yellow, though, & i'm wondering if that might be a sign of infection?
I know its a bank holiday weekend, but I would still be tempted to go to A&E in case it is and you need antibiotics or other treatment. If you are going to go, i'd seriously think about going NOW before the saturday night drinking crowd start turning up. I know this is a dreaful prospect, but to be honest, you are going to have a dreadful evening either way, at least this way you would be looking after yourself.
I also have a lovely DH, but I really sympathise with the feeling along thing. It is a horrible, horrible thing to have to go through. I'm thinking of you.