Big baby?

I had my last checkup last Friday at 29w 4d. Doc said baby’s weighing in at 1.6kgs (3.5kbs) which means he’s big, ranging in the 75%.

My doc scheduled me for a growth eco next week. I’ve read that those mostly measure big. For example the doc will measure the baby and estimate the birth of a 10 lbs baby but the baby is actually 7lbs when born.

Is my baby too big (so far)? Should I worry or consider a C-Section? I’m 5’3... I’m a tiny person with a tiny vagina hahahah... this is why I’m worried and asking for opinions or info from anyone with a similar experience 😊