I think it means your belly measurement (SFH) is unusually small (< 3rd centile) so they are requesting an urgent scan plus a follow up scan after 3 weeks.
Oh that makes sense thank you ! My midwife did mention I should be getting a growth scan put on my app but I still haven’t heard anything then seen that pop up so was just confused what all the words meant 😅
I think it means your belly measurement (SFH) is unusually small (< 3rd centile) so they are requesting an urgent scan plus a follow up scan after 3 weeks.