If you are suffering from post-childbirth "Ragged Bits" then I wanted to draw your attention to this thread which I've found tremendously useful:
here
I didn't start it, it's been running since May 2008, but it is populated by ladies who are all suffering from childbirth injuries you may be too embarrassed to discuss on here.
If you are ante-natal then for heaven's sake stop reading this now as you will just scare yourself!