I had low fluids almost my whole pregnancy. I know the further you go the less fluid you have because the baby it growing.
I was told to do nothing. Just hang out on the couch and watch tv and drink water.... about a gallon a day.... which was very hard at first but I soon got very use to it.
I'm sure since you only have 4wks left (maybe sooner) its nothing really to worry about. My fluids where coming up low at like 21wks.
