It is thought to be because hair doesn't fall out during pg which is what makes it really thick and why people say that pg women have really nice hair (although I know people who lose lots of hair while they are pg so that theory is not entirely accurate). Once your body stops making the pg hormones, your hair starts to fall out. Mine always starts exactly 3 months after giving birth and keeps going till about 6 months. It is horrible because as the hair grows back, I have a VERY noticable second fringe.

As my hair dresser was doing my hair about 5 months after DS was born she asked me if I had been having chemo or something . . . just the boost my self esteem needed at that point.

My hair is finally starting to look normal again.