Well, looks like the decision has been made for us. The obs doc said he wouldn't do an induction for social reasons, only for health reasons (fair enough) and a lot of them end in emergency C Sections anyway. He also recommended that I don't fly for a couple of months after a CS because of blood clot issues. DH finally managed to get some answers too, and although the baby could have a Canadian passport he/she could be refused entry to the UK with no visa (which can take up to 12 weeks to obtain). The issue of trying to get a decent photo will be nigh on impossible anyway. And, at last, one of my friends who has 4 kids (2 born in Canada, 2 born in Australia) told me she though I was mad to even be considering leaving with a newborn. All my other friends here don't want us to leave and so are trying to see all the benefits of staying, lovely but completely unhelpful!!
DH has spoken to his mobility team and they have said that because of the unusual circumstances he can leave a month early, so I will prbably fly home at 36 weeks (all being well in the pregnancy) and he will come home a week before the baby is due, organising the packers and shipping of the dog, leaving me to rest up and not worry. This, of course, makes me worry, but if I do go into labour my lovely mummy will hold my hand, and funnily enough my dad was a GP who specialised in obs so he will be on hand while I'm labouring at home (although I don't actually want him doing anything!!!!). The hospital is about a half an hour drive from their house so it will be reassuring to have them on hand. I will be sad for DH though if this wee one does come early :(
I feel so sad but yet so calm. We have absolutely loved living here but the job just wasn't great for DH. He has hated working here, sadly, but the lovely summers make up for it. There is always the option to go elsewhere in Canada or the world so we will see how we get on back in Scotland. I am also now just starting to plan everything in my head (I can't help it, I'm an organiser). My parents will be over the moon that I will be there for such a long time, and with the new baby too, and mum especially will be in her element. They have missed us dreadfully.
Thanks for all your sound advice. I really do love Mumsnet! :)