Changing chosen hospital for birth help!

Mu

I’m moving from my area for my SO’s work and financial reasons, when I got pregnant I wasn’t aware that our living situation would change, I’m moving from Surrey to the coast and I will obviously have to change my chosen hospital for the birth, I’ll be about 20-24weeks when we move, has anyone moved and had to do this? How do you do it? Advice needed for a freaking out FTM 🙈