Nothing could be more wrong! Coitus interruptus is one of the riskiest methods. The man is not always able to control his ejaculation, and seminal fluid can also escape during sexual intercourse. Even just a small amount of sperm can lead to pregnancy. Furthermore, when a boy is very young, he is inexperienced and very involved; it can be difficult to know the exact moment to pull out, and can also be frustrating because it interrupts “the best part.” It is not enjoyable for everyone.