This might be a ridiculous thought but before they take you down for the procedure, do they do a final scan to make sure the heartbeat is missing?
I had this confirmed to me by two Sonographers yesterday and I even saw the baby motionless in the sac before she realised it was bad news and switched the monitor off.
But I still would prefer them to scan me again before they operate. Do they do this anyway? Can I request it even though I know I'm being totally ridiculous?