I don't think there is a right answer for your question

Let me throw this at you, does it mean if you want a boy and you have a girl, it means you are not happy

because the one you preferred isnt wot you got?
When it comes to Children I believe whichever sex should be accepted with thanksgiving and be loved by the Parent as they are a gift from God.
I think when u talk of preference, it has to be something u can physically choose or create yourself , not like children!