I have 2 girls, and no more in my foreseeable future, and yes, it does bother me.
I have always wanted a boy, and whilst I love my girls to bits and wouldn't change them for the world, the thought of never doing some of those boy things upsets me.
If I were to have another girl I know I would be devastated.
I am working through it but yes, it still makes me very sad to think I will never have that very special mother/son bond in my life. Maybe it is because I have an older brother and know how fabulous it can be...?