Thank you frillyfarmer and everyone else for the kind comments.
I do realise I should have been upfront about how I feel. That was wrong on my part. But he knows now and has still gone.
He hasn't asked me to call him when I'm out or anything like that. He called me unreasonable for wanting him there as he can't actually come in anyway and if there is bad news he "only" an hour away. I've given up everything to be here for him and his son and sacrificed a lot.
To the people saying change the date, I HAVE TRIED!!!!! QA hospital in protsmouth have said they can't and that there's no other availability. I am going to put a complaint in about it. The letter also states in bold no children allowed in.... so I'm stuck between a rock and a hard place.
I understand life happens sometimes and if it was work commitments preventing him being there I'd have been totally understanding of that but it's not. Until yesterday I was under the impression he would wait outside... if I'd have known this a couple of days ago that he wouldn't be there then I would have got my family or friend to get a train or flight here to be with me. But it's too short notice the day before. Instead i have to put them on video call so I don't feel somewhat alone.
To the people saying grow up it's fine it's only a scan, you're right in that I am lucky enough to have an easy pregnancy for the time being but even so, I don't know what's going to happen in this 20 weeks scan. I'm frightened of receiving bad news alone as I don't know how I'll react. This is my first baby... I don't know how I'll react. I feel very sorry for any woman that has to hear bad news at their scan. Where is everyone's compassion and humanity?
To the women who have had bad news, thank you for your support and I'm really sorry you had to go through that. X