Since having my second son in 2008, literally everyone I know that has had babies have had girls, it's so hard, I couldn't go into a baby shops for a long time... I couldn't bring myself to walk past the girls clothes. I did find spending a bit more money and getting some really cute boys stuff helped, knowing I could as we had other boys clothes at home but realistically it's not the baby. Such you're grieving, it's the chance to have a daughter and I think it will take a long time to get over that. Have to say, I don't particularly get on well with my mum, have never related to her, never had a girlie relationship with her etc, my sister has but I nev have and sometimes I think it may be easier to have a son that I get on so closely with (again my mum is really close to my younger brother) than it would be to have a daughter that you presume you will relate to and then just end up with, well... Just an awkward relationship like the one I have with my mum.
I often wonder if my mum grieves the daughter she nev had with me as she probably had all those hopes and dreams we have about having girls and got a girl but it just didn't work. So I guess that is one way to look at it. I know what you mean about the amount of people walking around with 2 boys and a girl, it so hard that there just isn't a straight forward way of getting the family you want.
Proud mummy of 2 wonderful boys and now a 3rd one one the way