Have you ever wondered what an expectant dad usually hears from his male friends? "Buddy, once this baby is born, you can forget about sex for the next six months." If I were about to become a father, probably a little unsure about my new role, this advice would not be particularly comforting.

Why do women persist in thinking that once the baby is born, they will just walk off into the sunset? And why don't childbirth educators discuss the importance of "expectations management" and good communications?

It is undeniable that the arrival of a baby, especially the first, transforms the relationship inside a couple. Three people now must share love, time and energy – the exclusive nature of the couple's relationship comes to an end.

Moral and material responsibilities dominate, lives must be better organized and improvising becomes difficult, if not impossible. New conflicts can arise on matters that both partners thought resolved, especially regarding values and important decisions such as education and religion.

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