Where’d his feet go? Posted on February 28, 2012 by amanda We did Ivan’s 6 month check-up a week early to coincide with Ezri’s 3 year check-up. On 2/23/12 at 5 and 3/4 months old, Ivan weighed 16 lbs 6 oz. He was 27 1/4 inch long. His head circumference was 42 centimeters.