Thanks everyone! It sounds like it's "take your chances".
I have been told hypothyroid in itself doesn't mean I couldn't go to the Carmen suite, as long as I don't have other complications later in pregnancy.
Obviously though I realise all sorts of things could happen which would make Carmen unsuitable - high blood pressure, baby distress, breech, induction etc etc! So I guess availability is just another factor...
Glad to hear of positive experiences on the labour ward, if that is where I end up.
Thanks all x