Our boy was 4 months a few weeks ago.
his measurements were:
15 lbs. 8 oz
and head circ. was 41.5
I'm not sure what the units are on the head circumference but I guess centimeters?? At any rate he was only 35th % for head circ. but they assured me that has nothing to do with the size of his brain. (somehow they knew I'd jump to that conclusion and they headed me off at the pass so I couldn't obsess and fixate)
We went last friday when Violet was 4 1/2 months and her measurements were:
Weight: 15lb6oz 75%
And everyone comments on how big she is...my dad said yesterday, "I cant believe she is getting so big on just breastmilk".....well, yeah, duh!
I told him I spin in circles before feeding her to make the cream rise to the top. (I heard that here on MDC, and had to use it!)