The Facts... without the Lecture
1. When does puberty begin for boys?
2. At what age is a man’s body fully developed?
3. How many sperm are contained in the average ejaculation?
4. How many sperm does it take to get a woman pregnant?
5. What part of the male body produces sperm?
6. A man can get a woman pregnant from puberty throughout his adult life:
More information on the Male Body