08/28/2026
✨ Reminder: There’s a range of “normal” when it comes to baby size!
Babies come in all different weights and lengths, and healthy doesn’t have one specific number attached to it. Genetics, gestational age, maternal factors, and plenty of other variables can influence how big or small a baby is at birth.
And while ultrasound can be a helpful tool for monitoring growth, estimated fetal weight is just that…an estimate! Ultrasound measurements, especially later in pregnancy, have a recognized margin of error and don’t always predict birth weight accurately.
So if you’ve ever been surprised by how big or how little your baby actually was compared with the estimate, you’re definitely not alone!
💬 We’re curious about your experience:
What was your smallest baby’s birth weight?
What was your biggest baby’s birth weight?
Did you get a growth scan close to delivery? How did it compare?