Hola ! My Name Is Dominique .?

Today Is Sunday, July 03, 2011 and This is the week i'm suppose to get my period, i had sex with my boyfriend June 30rd on thursday the day before he left to go upstate. We had protected sex but then as we were ******* a burning sensation began to start down at my vagina for about a minute but i payed it no mind, but not to pay it any mind the condom popped but i had no clue until after the fact, but mean while the buring sensation stopped and my inside got even more wet, at that moment we both were satisfied on how we felt so we didnt bother to stop until i guess he finally realized that the condom was popped but when he pulled out alot of *** came running down my legs and we both think that he nutted inside of me. This is the week i'm suppose to be on my menstural but it did not come yet, i still feel my period cramps but there starting to go away . Could I Be Pregnant ? What Should I Do and When Should I Take A Test ?