I had low amniotic fluid too but i couldnt remember which part it was but i had a 1 month bed rest (instructed by gynae) but i secretly worked (coz i couldnt resist not touching my work totally).
Please try to drink as much water as possible n rest more in bed. I managed to get better after the first two weeks but it wasnt really ideal. Luckily after the 1 month gynae said it was ok!
Anyways, my LO is alr one yr plus now!