I was listening to some chick rant about how she has used condoms EVERY TIME for over nine years because she just doesn't want to get pregnant, while bashing the "pull out method." Her argument, that we have all heard 100 times is that pre cum can get women pregnant. Then I found these articles. I can save you the reading, there is no semen in "pre cum," and the pull out method is only 2% less effective than condoms.
Sex Study: Pull Out Withdrawal Method Rivals Condoms, Better Than No Birth Control - ABC News
How Effective Is Pull Out Method For Birth Control? | LIVESTRONG.COM
Pull Out Method - Withdrawal Method