Hey! I'm 15 years old and I cannot sperm yet, is that a problem? What is the maximum age I might have to wait until that is possible?
Kole (age 15)
A boy begins to ejaculate semen, which contains sperm, somewhere in the middle of stage 3 of development. There isn't a particular age, though the average boy begins to have ejaculations somewhere around the age of 13. However, this is only the average. Ejaculation generally starts about two years after puberty. Puberty in boys is considered normal if it starts as early as 9 or as late as 16. Hence, some boys, even though they are normal, will not gain the ability to ejaculate until they are nearly 18 years of age or they may start as soon as 10.
What you should do is use the Tanner Stage Calculator for Boys to determine how far you have developed. Somewhere between 3.5 and 4.0 is when boys typically begin to ejaculate.