Quoting Ellie Shikari:" They can be off with weight by quite a bit. I was told to expect a 10 pounder and she was just 7lbs 5oz."I was told my baby girl was very close to 10 pounds also and she was only 7lb 14oz. I was induced 4 days after my due date because of it but it was not necessary. They are not always right with their estimates.