My mom comes from a family of 7 - 4 boys, 3 girls. My dad is from a family of 5 - 3 boys, 2 girls. Together, they had 8 kids, 5 girls, 3 boys. My sister and I have two kids each, both girls. DH's family has 4 kids - 3 girls, 1 boy.
Don't know if that helps at all. I'm really hoping to have a boy this time, but we'll see what happens. I think it's nice to have two of the same sex together, so that they have a friend and playmate.