Your son's height and weight are definitely well below what I would expect for a child in your family. I don't really think that your husband was on the 3rd percentile as a child.It is unlikely that the cortisone you were taking during early pregnancy affected your son's growth.His pneumonia could well have been a problem. What concerns me is that with his history of 'congenital' pneumonia and his failure to thrive and grow as expected, we need to exclude illnesses such as cystic fibrosis in particular. Other conditions include coeliac disease. Anaemia will not usually result in such a significant problem with growth and weight gain.
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