Anatomy scan

Tatum • BOY MOM💙

So I had my anatomy scan done today. Based on my period I am 24 weeks and 3 days. BUT, baby is measuring 26 weeks and 4 days and he weighs 1lb 14oz. Is this big considering how far along I am?

EDIT TO ADD*** My doctor is wanting to take him early via cesarean if he gets any bigger than 7 pounds just because I had complications with my first son who was 8lb 9oz and now I am in the 90 percentile for shoulder dystocia AGAIN...