Measuring 40 wks 2 days 🙈

I'm currently 37 weeks. I went into l&d for bleeding and contractions. They ordered a sonogram to make sure baby was ok and found out that he's measuring 40 weeks and 2 days!! Im waiting for my doctor to come in tomorrow morning. My little boy is wiggling in at about 9lbs. How can he grow that fast!? If the doctor decides to induce me tomorrow I hope my little boy is ready!!