There is no QLD Health regulation regarding spacing of births or anything like that. That's hospital bullying The oxytocin you're referring to is the same drug that is used in induction. So what Tanstar says is correct. Your risk of uterine rupture was just as high when you had that as it will be if you have a vaginal birth. It might help your DH to know that to keep things in perspective.
yes i realise that its the same drug.

Not trying to sound rude, but how do you know there isnt and QLD health regulation? I would like facts on this, evidence to support my case