Concerned And Scared

I do not want to discuss this with any of my friends yet but need to get it off my mind. I am 20 years old and a junior in college. Up until a little over a week ago I was a virgin but that changed very unexpectedly. I have not been a total prude in any way since I had let guys play with my breast and touch my private area but nothing else always staying in control. I started dating a guy in late November and things had gone well. A few day ago we went to dinner and a movie then back to his apartment to watch TV and have a couple of beers. Up until that evening we had just kissed and enjoyed each others company. That evening he unbuttoned my blouse and was playing with my breast then he started to run his hand up my skirt and I told him we couldn't do anything. As we were kissing he ran his hand in my panties and began fingering me. I had never let anyone go that far but the feeling was great and I let him continue. It didn't take long for me to get extremely excited so when he wanted to know if I wanted to make love I gave in after making sure he had a condom and letting him know it was my first time. We started in the normal position but after a few minutes he ask if I'd like to try it doggie style telling me It was a totally different feeling so I agreed. We switched and I quickly understood what he meant as he was definitely getting deeper with the feeling more intense and I was letting out an "uh" every time he went in deep. Before long he said " get ready you're going to really enjoy this". Then I felt him throbbing and a warm feeling. I screamed and ask if the condom had broken because it felt like I was filling up. He told me the condom hadn't broken but he had taken it off when we swiched so I could get the real feel of things. I could not beleive he had done that to me. I am very concerned and scared because I really enjoyed it up until that moment and I'm afraid he may have knocked me up. I have another few days to go before my period is due.

Ok..this is an update. The more I research the more concerned I get. According to what I read we did it on the most fertile day of my cycle. His comment about me being so wet was also an indication of fertility and gave his millions of ***** help in trying reaching their destinattion. Then doing it doggie style he was able to deposit it deeper again improving the chances of me getting pregnant. Please pray for me.