Doctor asked me yesterday if i knew babies estimated size. I do not know. I have not been told anything. No growth sonos for me...yet! When i feel LO moving around i try to feel the body part (butt i assume since she is head down) and she feels huge (wide). I know there are arms that could be at her side and legs..... but no doc has me wondering how big LO just might be. My 1st baby was 7.9 at birth.............hmmmmmmmmm im hoping for not much bigger this time! Only a few more weeks and we shall know!!!!!