What does it take to have a baby boy?

The sex of a baby is determined by the chromosomes contributed by the parents. Males carry both X and Y chromosomes, while females carry two X chromosomes. If a sperm carrying a Y chromosome fertilizes the egg (which always carries an X), the resulting combination will be XY, resulting in a baby boy. Factors like timing of conception and genetics may influence the likelihood of having a boy, but ultimately, it is a matter of chance.