What causes low amniotic fluid?
Birth defects – Problems with the development of the kidneys or urinary tract which could cause little urine production, leading to low levels of amniotic fluid.
Placental problems – If the placenta is not providing enough blood and nutrients to the baby, then the baby may stop recycling fluid.
Leaking or rupture of membranes –This may be a gush of fluid or a slow constant trickle of fluid. This is due to a tear in the membrane. Premature rupture of membranes (PROM) can also result in low amniotic fluid levels.
Post Date Pregnancy- A post date pregnancy (one that goes over 42 weeks) can have low levels of amniotic fluid, which could be a result of declining placental function.
Maternal Complications- Factors such as maternal dehydration, hypertension, preeclampsia, diabetes, and chronic hypoxia can have an effect on amniotic fluid levels.
also from when it happened to me around 4 months, my dr said it could just be dehydration and told me to double up on fluids. mine ended up going back up on its own and no complications since after doubling water intake. good luck!
and 38 weeks pregnant