Low Amniotic Fluid - 38 weeks

Has anybody had experience with this?

Growth scans have been done every 4 weeks due to having a two vessel cord (single umbilical artery).

Last scan was done on the 3rd (36 weeks), had my check up today where they were reviewing the report. Got sent home told that everything was fine, then received a call saying that the fluid levels were low (6.8) and I needed to be seen by a doctor in 3 days. My only concern is that the ultrasound is over 10 days old.. The levels may have dropped even further? I feel as though they should be taking this a little more seriously (????)

I know levels drop from now until delivery and that if it’s below 5 then it becomes serious. But if anyone else has had a similar experience to share that would be great.

Note: The baby is slightly smaller than average due to having the 2VC but there are no other markers.