It would make sense there was a 50/50 chance that a woman will have a boy or a girl. But that's not the case – there’s actually a slight bias toward male births. The ratio of male to female births, called the sex ratio, is about 105 to 100, according to the World Health Organization (WHO). This means about 51% of deliveries result in a baby boy.
So far, of you all have guessed we would have a baby girl while have guessed we'd have a boy. I guess we'll find out soon enough!