I was detected low-normal amniotic fluid at 20 wk scan (afi 8.5) and when re-scanned at 28 wks, it was 7.9. I kept having scans every 2 weeks. at our 32 wk scan he was measuring 2 weeks behind, but at 34 wk scan he measured okay. At every scan, there was some growth so they didnt want to take the baby out, but my fluid levels were always near low-normal.
I drank lot of water, took a protein rich diet , had sachets of L-ARGININE, but fuild levels stayed put betwn 8-9. At 36 weeks, baby was again measuring behind, and i had to undergo a non stress test every 3 days. at 39 weeks, i opted for a c-sec, as i was told vaginal delievery can be stressful for baby in case of low fluid.
My baby was born at 6lbs.. so not entirely small, but in low percentile. His height was 19 inches, also age appropriate.
Just keep yourself hydrated..drink tons of water n have lots of protein (egg whites, fish etc). Best of luck..