accuracy of growth scans 🤷‍♀️

Mrs • 27 married... TTC since May 2015. X2 M/C Aug 2015 and Dec 2015... ❤️ BFP Aug 16... EDD 09/04/17 👶🏼🌈💙
I am just wondering if any mommas had growth scans at any point in their pregnancy? I had a scan at 32 weeks and little (not so little) man is estimated 4lb 15oz
I'm interest in finding out what estimated weight moms to be had and their actual birth weight? Apparently they can be really out?
😘😘