L.K.
I am a midwife and in my experience there is really no such thing as low amniotic fluid in an otherwise healthy pregnancy with no slow leak etc or placental issues etc. I truly believe the "you have low amniotic fluid" is doctor language for, "I have a BMW payment coming up so lets make me some more money and induce you."
Also, it is normal for the fluid level to start to decrease as the pregnancy gets close to ending.
Lisa