Hi Alex - I am 20 weeks pregnant and had our second scan last week. The scan indicated that the babies femur was the length of a 17 week old baby ie in the bottom 4 percentile of the normal range. All other measurements were avarage for a 19 week old baby. My midwife tells me its not an abnormality and not to worry but I cant stop thinking about it....what are your thoughts, should we be concerend? Both my husbnad and are not short, infact out first child has always been tall for his age!