Growth Scan at 40wks

Ree • 30. Second baby May 2021. Bay Area, CA.
Dr measured me at 39wks and said I measured really small but I'm petite so baby may be petite. Now at 40wks she said I measured smaller (fundal height). She ordered a growth scan to confirm if baby is small or if there is a growth restriction that we'd have to induce if better for my baby. Still waiting to hear the results. Anxious. 🙍🏽 I was anxious enough being overdue so now I just want to know that my baby is ok. I don't know how they could've missed this if there is something wrong.