AFI low?

Soooo, I had an extra scan at 36 weeks a few days ago to check my placenta position ( it's moved so we can go naturally! Yay!)

But they also flagged up my AFI (Amniotic fluid index) was less than 5th centile at 4.6cm

I was taken to assessment and baby ws monitored and she was fine, but I ws asked to go back tomorrow for another scan and monitoring and bloods etc!

Has anyone else had this? I've Googled it and it doesn't sound very good! Wonder if they will Induce me tomorrow!! 😟