I never had any Antibiotics with my wisdom tooth extraction, and I know lots of people who have had the same experience. If they give you some you can keep them around and not take them. If you need them for an infection you need them. It's taking them "just in case" that you don't want to do. Don't freak yourself out about it! I do that all the time and worrying about it just makes it worse. Pain just fatigues your body and overtaxes organs you need for fighting off other things.