Yes, there is always a chance of getting pregnant if you're unprotected. But, if you're stressing out about it then that can make your period late as well. So try to relax and if it doesn't come in a few days or a week, take a pregnancy test. Good luck
Well, just so you are aware, the 'pull out' method really isn't a good 'method' of birth control... It really isn't method. So, the likelihood of pregnancy is already higher. I didn't look at a calendar to see if the chance would have been higher during that time, but if you're having unprotected sex, there's always a chance. I'd wait a day or two, and take a pregnancy test.