too much amniotic fluid?

[faith77]

I am currently 21 wks w/ twins and baby A has too much amniotic fluid and baby B has the normal amount. They each have their own sac and placenta, so one does not effect the other, but High Risk OB wants to see me every 2 wks instead of every 4 b/c extra amniotic fluid can lead to pre-term labor. Anyone have any information regarding this situation or had the same experience? Any info appreciated!