Jack had his 9 month check up Monday morning. The doctor confirmed our suspicions. Jack is big. His stats Weight: 20 lbs 6 oz (50th percentile) Length: 30.5 inches (95th percentile) Head circumference: 47.25 cm (90th percentile) He's doing great in general. I think length may switch to height for his next appointment. He loves standing and is trying to pull himself up on several toys.