Can I possibly be pregnant with these symptoms?

My Partner and I have been having unprotected sex for some time now. We have sex about 3 times a week and today i experienced some pain while having sex in the female region. I have never felt this pain before. Its not the regular sexual pain. My nipples have been tender for about 2 weeks now and I am not due for my menstral until the end of the week. Am I Pregnant?