31w4d baby weight

I had my dr appointment today and an ultrasound, dr said baby is measuring 4lbs 2oz. But I was wondering if she will be bigger because she should be around 3lbs according to her gestational age. I don’t remember what my other babies weighed at this stage but my girl was 39 weeks 6lbs 14oz and boy 40 weeks 7lbs 6oz.

4lb2oz would put her at 33 weeks which she would be according to my LMP but My due date is 11/18 and if it was off LMP my due date would be 11/08. Just curious lol.