[Loving Linux Penguin]

Hey,

A quick search turned up that the answer to your question is somewhat ambiguous. There is conflicting evidence as to whether pre-ejaculate can contain sperm. The best thing you can do now is to get a test as soon as possible (and in the meantime, relax as much as you can, so the stress doesn't delay your period). In the future, try and make sure to always use a condom, preferably with some other method of birth control as well. It's also very important to get tested and make sure you're both clean of STDs.