Yeah, as long as you've thoroughly checked your pre-ejaculate for any sperm prior to and during sexual intercourse you should be fine.Jamie Doerschuck said:This is totally off topic, but the pull-out method can be just as effective as condoms when done correctly. The kicker is the "when done correctly" part... And it also doesn't really help with preventing STDs.SeeIn2D said:As long as you aren't stupid and and you know not to like believe all those stupid myths like "Oh if you pull out before you actually finish then she can't get pregnant"; thats a nice one; then it is fine.
But yeah.. If your only concern is pregnancy and you're extremely self-controlled then the pull out method could work for you.
One source: http://www.plannedparenthood.org/health-topics/birth-control/withdrawal-pull-out-method-4218.htm (Click on the "How Effective is it?" section)
Suggesting it as a valid form of birth control is naive at the best of times. Suggesting it for a teenage boy is borderline abuse.