All that matters is that they grow proportionate according to their growth
chart. As a matter of fact , my two year old measured 90
percentile in length, head curcumferance, abdomen, and weight. She is now in the 60 percentile in everything. Shes doing great. i guess once she was born, she was alot more active which is why shes now in the 60 percentile. Going through the same thing again probably, except this one is a boy. I think alot of this is genetic and use to go unnoticed.