Yep I had it to when pregnant with DS!
It was under my chin and around the sides of my face. I read in what to expect when your expecting that it is usually when you are having a boy as you are producing testosterone for him! Just lovely! It wasn't long after birth that it dissapeared.
Never had it through my other pregnancies one is a girl an the other we find out in 2weeks so lets see if the theory is true.