I am 16 yr old an I had sex 5 days in a row today I had sex an it hurt really bad could I be pregnant I don't get my period till next week?

Of course you could be pregnant. You had sex, right? Now, all joking aside... You could be pregnant as there is no form of birth control that is 100% effective.

Unfortunately you are now playing the waiting game and have to wait to see whether your period comes. If it does, you are still not out of the woods, with this timing. It is possible that you get this period, but not next month's.

You had sex, you don't think that causes pregnancy? Moreover, if your period is not due until next week, you probably had sex at a time when your fertility was heightened.

So yes, you could very likely be pregnant. Is that what you wanted? Seems that way by your actions.