Its a male dominated country. People quite like if a boy is born. I have heard of couples who find out of what se their baby is, and if it is a baby girl, they will get aborted.
I don't think it is necessary, important or even very much fun to find out the sex of your unborn baby. What's the big deal anyway? It's going to be what it's going to be. God has already decided it.. Anyways it is considered illegal..