Low amniotic fluid  What is amniotic fluid, and what does it do?
During pregnancy, your growing baby is cushioned inside a fluid-
filled bag (amniotic sac) in your uterus (womb).  The wall of
the amniotic sac is made up of two membranes: the chorion and
the amnion. These membranes keep your baby safely sealed in his
bag of amniotic fluid. The membranes usually break open during
labour, when your baby is ready to be born, and fluid flows out.
This is your waters breaking.  Amniotic fluid:    • Protects
your baby from being hurt if you have a blow to your tummy, or
if your bump is squashed.   • Helps your baby's lungs and
digestive system to mature.   • Protects your baby against
infection.  What is a normal level of amniotic fluid?  Your baby
regularly swallows amniotic fluid, and passes it out of his body
as urine. This means that the amount of fluid in the amniotic
sac normally rises and falls every day.  The amount of amniotic
fluid increases as your pregnancy progresses. You start off with
just a few milli