I am sorry you might be going through this hun - I had a missed Mc at 12 weeks in march and no pain etc, till the early hours of the morning of the D&C and then sat on the loo and bleeding was pouring out okf me for 4 hours and I had been nil by mouth ready for the op since midnight, so I ended up in A&E in a right mess, throwing up and painful contracting every 2 mins for 2 mins long - and all veins collapsed and needed blood tranfusion in the end , so please do keep an eye on any bleeds that cause you to soak a big muma towel in less than 10 seconds, as it's dangerous for you. I only passed small clots, but needed the D&C anyway that morning after all the runny bleed , so I don't think it all came away.
I really hope that this is not it for you, good luck in your scan X