reproductive experts were taken aback by a paper in the June issue of Contraception magazine. Based on an analysis of studies, the paper pronounced withdrawal “almost as effective as the male condom — at least when it comes to pregnancy prevention.”

“If the male partner withdraws before ejaculation every time a couple has vaginal intercourse, about 4 percent of couples will become pregnant over the course of a year,” the authors write.

For condoms, used optimally, the rate is about 2 percent. But more significant, the authors say, are the rates for “typical use,” because people can’t be expected to use any contraception method perfectly every time. Typical use of withdrawal leads to pregnancy 18 percent of the time, they write; for typical use of condoms 17 percent of the time.
well according to this article, it is actual doubles the pregnancy rate in a perfect universe, but is a negligible difference under the 'typical use'

cant wait to show this to my present and future conquests

personally i would rather not pull out
and why would they not include pullling out with a condom????
thats what i hear they do in some pornos, so I am told