Re waters breaking and keeping the baby in... If it's a hindwater leak, or there is still adequate fluid round the baby, and the woman is not having contractions, you can keep a baby alive for many more weeks with ruptured membranes. It is the membrane next to the baby that makes the waters. It keeps making more until the baby is born. What you do is, you keep an eye on the AFI (amniotic fluid index) by doing regular scans to make sure there is enough water there and you get the woman to take her temperature every day to make sure there's no infection. And thus you keep a baby in.