I'm 13 wks pregnant and I've already got 3 DS (7,8,11) Just had my Harmony results which were low risk (Whoop!) and found out I'm having another boy. I'm really pleased everything is ok but 4 boys?! 
I'm in a minority as it is in my house and have weekends full of rugby and football. Think I just wanted advice/reassurance from anybody in the same situation with so many boys.