Here's the CDC growth chart:http://www.cdc.gov/nchs/about/major/...hchartFAQs.htm
And please note the paragraph that says: Are these charts appropriate for exclusively breast-fed babies?
The 2000 CDC growth charts can be used to assess the growth of exclusively breast-fed infants, however when interpreting the growth pattern one must take into account that mode of infant feeding can influence infant growth. In general, exclusively breast-fed infants tend to gain weight more rapidly in the first 2 to 3 months. From 6 to 12 months breast-fed infants tend to weigh less than formula-fed infants.
My breastfed (for 20 months) dd gained weight quickly in the beginning but now only weighs 25lbs at 2.5 yo.