Squiz Good luck for today, hope you'll get some answers soon
qazxc Welcome to the thread, and sorry that you find yourself here. I'm also on my 3rd mc now, and like you, really worried that time is against me - I'm 41... If it's any consolation, I had DS at 39, so I think your odds are not bad regarding the age.
I had my follow-up scan today, nothing much has happened. I'm now bleeding, not a lot yet, but it's bright red. The EPU discussed all my options with me in great detail, and I've decided that I will wait and see what happens for another week, before deciding if I want/need any intervention. They most likely won't do an ERPC because the sac is still very small, so it'll be either medical or natural management. I really don't like the idea of the medical route, so I'm really hoping that nature will take its course soon.
But they are going to start investigations now, which is a little consolation. As soon as the actual mc has taken place, they will get the ball rolling with tests etc. Plus, they will get any pregnancy tissue tested that I bring in, should it be a natural mc. Think I need to go and buy some long-sleeved plastic gloves and have them by the toilet 
Not sure what to wish for - that they find something specific (which then can or can't be treated) or not...