Update:
So on Saturday I had a scan which showed a gestational sac of 18mm and no yolk or fetal pole. My symptoms had dropped off by then too.
I had bloods on Monday with my HCG being 16,000. They told me to come back in today for a scan as the size of the empty sac and HCG was consistent with an anembryonic pregnancy. I went back for my scan today and the lady was quite rude.
She said to me "why have you come back for a scan after only four days" and I said because I was told to come in after I'd had my bloods done. She said "well there's nothing we can do because legally we have to wait two weeks to see whether anything develops in the sack but I'll scan you today anyway"
So she does a scan trans abdominal and then does an internal scan and says that there is now a yolk sac present.
She made some sarcastic comment about this is why we wait two weeks. She said to me you need to go away for another two weeks before we can rescan you, and if you believe in that time then you can consider that to be a miscarriage.
I said to her can I have the paperwork with the measurements on and she said no.
I said why not, she said what do you need it for I said because I'd like to keep track of what's going on.
She said well, I haven't even written report up yet and we don't give them out for pregnancies which are not yet viable.
I said to her in your opinion, how do you think this is going to rest and she said some pregnancies just take a while to get going.
I am absolutely confused and upset at the moment. I'd got myself to a place where I had accepted that this wasn't going to progress. I now I've basically been told to go away and suffer a miscarriage naturally I'm at there's nothing they can do.
She didn't seem very positive about there, being a yolk sac at all, considering my dates and the size of the gestation of hCG levels before.