Measuring 5 WEEKS ahead!?

Holly • BOYMOM! Silas Gage 5/10/11 & William James 12/16/16. My babies in Heaven Caleb Michael 3/29/08 & Baby K 02/09
Just wondering if anyone has had experience with this. Yesterday at 23w5d, My boy is measuring 28 weeks, weighing almost 2 pounds. I (I'm very aware that measurements are not always accurate) Up until this week, he has measured 2 weeks ahead. They won't change my due date because he's been consistently measuring ahead. My last pregnancy was quite the opposite as my son was IUGR. They haven't mentioned anything about ultrasounds later on to check the growth. So I'm just curious if anyone has had this happen and what the outcome was. Did Baby come early? Were you induced or c section? Any extra monitoring? Thanks in advance!