I'm so happy for you!!!
We are having or third girl and couldn't be happier. I would have loved a baby boy, too, of course... But I'd been hoping for another girl. I love my daughters to pieces, and we all really miss our foster/bonus baby who was a girl, so this just works out perfectly. We keep getting "I'm sorry" comments from people who think we should have had a boy, and it really gets in my nerves. We are all so excited-- even my DH, whom everyone thinks is being deprived. What they don't realize is that he can bond and have fun with his daughters just as well as he could a little boy.
I love being able to say "she" all the time and to be able to plan for our future with another lovely little girl in it.