Human procreation includes the process of conceiving and bearing offspring, but is not limited to biological simplicity. Procreation was ordained by God from the very beginning when He created Adam and Eve. After God created them, He blessed them and said, "...Be fruitful and multiply, and fill the earth, and subdue it...".
Eternal aspects of human procreation
One of the crucial differences between animal sexual reproduction and human procreation, is that when a new human being is conceived, that child is an eternal being.