I had low amniotic fluid at around 32 weeks. I kept having scans and ctg's. I think I had a scan every couple of weeks and I made sure I drank heaps of fluid (not that it helped). Each scan showed low fluid. I think it went down to around 6 or 7 (I cant remember now). But then at around 37 weeks, I had a scan and it was back to normal! From that point on, I didnt need another scan and went on to 41 weeks. Im pretty sure they worry when the afi goes down to 5 and under but it also depends on how the bub is laying and the measuring - dont quote me on that though. Do u know your afi number? I really feel for u and have my fx'ed that everything is ok.