Is there a possibility of pregnancy from the "pulling out" method of sex?

[Kam]

My boyfriend and I recently lost our virginity to each other, it was completely consensual and we were both genuinely ready and are committed to each other. Although we were ready to have sex we definitely are not ready to conceive.

We decided on the "withdraw method" for I read that it had a 96% success rate. But, he put it in for a few minutes and pulled out then we countinued with oral sex and he didn't cum way until later. But my paranoia comes from the theory that precum may contain sperm. But he wasn't any close to ejaculation when he put it in.

I've researched the topic beforehand and we're both 100% sure and tested that we don't have any STI's. So please do not involve any details about that.

Should I be worried about the possibility of pregnancy?

[Heather]

No method of contraception is 100% effective, so anytime people are engaging in the kinds of sex that present risks of pregnancy, there will always be some possibility of pregnancy, it's just about how much.

If you want to lower that risk in the future, you'll want to either use one of the more effective methods of contraception -- withdrawal is one of the least effective -- OR double-up methods, like using a condom with a hormonal method. Condoms should generally always be considered a must, honestly, because STI risks aren't lower than pregnancy risks, particularly for the age group we serve who has the highest rates of them for people of all ages. (We're a health organization, so we can't be asked not to provide important health information: that's basically asking us not to do our jobs ethically and responsibly.)