So whether baby is born boy or girl is determined actually by its father.
That is, women only provide X chromosome, but men X and Y, but you know,
to form a baby, X must meet Y to combine and synthesize into genes, and then ... them...tissues and organs and at last human body.
Note me if I was saying wrong.
In China's old times, baby girl was not preferred by a family, because Chinese family wanted to produce more labour men, which must be born male, for that in Chinese thinking, women couldn't do much labour work, and for women, they had to rest in home and do housework to serve her husband and children, that was all she could do, but now you see, world is changing and women can also have her carreer and some of them even do greater than men (this will be discussed later), wait and think... so Chinese family usually had the choice to boy, but if this failed, the couple would scold the wife, why did she carry the evil elements which produced a girl!!!!
And Now we know that saying is ridiculous, but at that time it was true!:-)
So everything is clear, and many commerical ads say that if a husband do a specific thing or act in a specific way in his marriage life (avoid vulgarity), he would produce a boy or girl later, but I doubt this. Would you?
???????