It's funny because I always thought this was such a reliable form (it has been for us) since it's worked for a combination of at least 13 years for us. It sounds like it could fail, though I doubt it will for us.
I do want another baby now so if it failed it wouldn't be a big deal... though I could seeing down the road when I know I am done and wham it would fail at that point.
We've been using it for 7 years now and we haven't had any unplanned pg's. I've gotten pg the first cycle the three times we were TTC (one was a m/c) so fertility isn't an issue. But, like others have said, we'd be comfortable with another baby should he/she come along so we're ok with the failure rate.
I got pg this way ten years ago with my bf at the time... he wasn't even close to "finishing" and put on a condom, but still I got pg. With DH, we did the "stop in the middle and put a condom on" thing for a few months, and we were ok. But as soon as we decided to try we got pg. Not quite the same thing as withdrawal though...but still it can fail. Sounds like you're ok with that though, so hey, carry on
Oh, me me! I got preggo using this method (oops) after using it "successfully" for a few months. And I honestly can't remember any more if we were trying to use this method when ds2 was conceived, but we may have been.
I know that dh & I are extremely fertile, so we use serious birth control (ie- IUD, which I LOVE). I totally do not recommend using the pull-out method if you really don't want to get preggo. To me, it's the "we're not trying, but if it happens..." method.
Me! My second child was conceived when my ex and I were breaking up (the first time). We had sex ONCE (I know, bad idea anyway...) and we stopped before he *ahem* and I ended up pregnant. We got together and had another baby two years later on purpose and then divorced before she turned two.
About 3 months after we split up, he got his gf pregnant the same way. Oops, indeed.