It's completely normal in the months after having a baby that you loose a lot of hair - for some women it is huge amounts and for others it will be minimal. My baby is 7mths and I am only just starting to loose mine. During pg some women retain a lot of their hair in pg, giving the appearance that it is really thick or growing really quickly because of the hormones (in a normal un-pg women you shed and regrow hair all the time) and once bubs is born the hormones settle down and your hair goes back to its normal growth patterns.