Bless you, I know it is so hard when a friend or family member announce 'it's a girl'.
Try not to read the Facebook comments cos if you are anything like me, you will be super sensitive anyway ! I agree that society sometimes seem to favour girls, certainly where I am from.
People just seem to feel sorry for me. As someone who doesn't have or is not expecting a girl, I totally understand how you are feeling.
It is so hard but most of us do understand xx