A child comes to be as a result of conjugation between male and female. But you may want to decide the sex of your child if you so wish.


The male sperm cell as genetically proven, is either X or Y, while the female egg cell carries X. Y sperm cell is always heavy though swim faster and also have short life span compared to X sperm cell which has longer life span.


Fusion of X+ Y results in a male formation while fusion between X+X results in a formation of a female.


A mating of male and female some days before ovulation will likely results in X +X fusion which of course is a female child. A mating some days after an ovulation will most probably lead to X+ Y fusion which is a male child.