How long do it take for a boy that has pubic hair to get sperm?

The development of sperm typically begins during puberty, which can start around ages 9 to 14. Boys usually begin to produce sperm a few months to a couple of years after the onset of pubic hair growth, as this is a sign that their bodies are maturing. By the time they reach full puberty, usually around ages 14 to 16, they are generally capable of producing sperm. However, the exact timing can vary from individual to individual.