Maybe use aba eg graded exposure to new hospital with systematic immediate rewards, in context of distractors and preferably with fight-or flight-response prevention
Then grit teeth (or try to see the midwife in a children's centre) and get the initial visit out of the way. As a third time mum who may progress fast, you do kind of need a local maternity booking, the possible mini-row about home v Hosp v birth centre can wait till you're safely listed. And I realise the times won't work but just maybe the local midwives might be a little bit [http://www.kingstonmaternity.org.uk/images/stories/pdfs/Yoga_Class_flyer.pdf woo] and they seem to like [http://www.kingstonmaternity.org.uk/self-referral-form self referrals]
Photocopy of old notes, look blank when asked by herts Hosp if youre definitely now booked at st newhome's, especially when starting the process if it seems very slow. if you're back in herts when the urge to push comes I doubt they'll leave an almost-delivering mum with zero care.