thanks for all the comments.
the birth centre is attached to a hospital, and you can be discharged to the hospital but the hospitals policy is 48 hours after birth anyway, so it means i would move 24 hours later and then have to go home 24 hours later again anyway.
oh well, i guess ill just see how it goes, but its interesting that many peoples experience even on here is that going home early in retrospect was a bad move for their health. obviously not true for everyone, but at least for some.
i will be priming up my dh to "fight" for me to stay for an extra few hours if necessary, dachlostar.