Hello,

Yes, it is completely random and it also depends on father's genes. If a man's Y chromosome is combined with a women's X chromosome then it gives rise to a boy. If a man's X chromosome is combined with a women's X chromosome then it becomes a girl.

So, here chromosomes plays a important role. If the genes is proper and has equal proportions of X and Y chromosomes in a man then the probability of getting girl or boy is 50 percent.

I hope this information helps you.

Thank you!!