A. The first divine commandment to the first finite human was to perpetuate the human race by having children. The power to create and perpetuate is a divine attribute in mortal beings. Let's use it.

B. A child is a blessing, and who doesn't want a(nother) blessing. Some times we might be inclined to hesitate because, like anything valuable, children come with a price. At least so we think. The reality is life is priceless.

C. Ultimately, procreating is a partnership with G-d, and an expression of trust in Him. Children cost too much? Worried about global overpopulation? That's where trust in G-d helps to iron things out. The excuse "I can't afford it" or "it's bad for Earth" melts in the face of faith. G-d is big enough to feed another child. (Starvation in the world today is a result of sociological issues, not agricultural capacity.)