Your amniotic sac can heal if you have a leak. This can be perfectly fine.
Breaking and the giant woosh of water that follows is not fine. But I suspect you didn't have that, or you'd be in the hospital with antibiotic drip, etc.
Your mucous plug can grow back. Since you aren't due for 9 weeks, you don't want to give birth any time soon. Even with the steriod shots, there is a major risk to your child's lung development and loss of oxygen to the brain (which can cause irrepairable brain damage).
Your leak must have stopped by now. And do you mean your amniotic fluid is infected? Or you have a bladder infection? A bladder infection can cause contractions as well. But if your water actually did break, you would need to be in the hospital. Try to argue that point is fine, but we all know if your water breaks they don't send you home for a few weeks. They deliver you within 24 hours.
I'd be concerned if your baby wasn't growing. That might be problematic. But if the baby is healthy otherwise, i'm sure they'd let you continue with your pregnancy. That baby is safer inside you that outside you at this point.