Oh dear. It doesn't sound good.

I think this is a "missed miscarriage". I have had one too, went in for 12 week scan to learn bubs had stopped growing at 8w2days (have no idea how they pinpoint that well tho).
I needed a currette (D&C), they don't always go on their own.

Have they referred you to anyone? Did they suggest D & C?

I'm really, really very sorry.