And my stomach started hurting really bad and get nauseated but I don't vomit and I'm very tired and I stay hungry even after I have eating something and my back is hurting. Can someone please tell me what you think is wrong?

Are you sure you're cycle was totally done on the 11th? - All the things you're describing sound like they could be menstrual symptoms - what is your concern?

It's always a possibility you are pregnant.With you having your period this month, you'd only be a couple weeks. Symptoms of pregnancy don't start right away. Nasuea starts probably the 2 month, tiredness, 2-4 months, back hurting usually doesn't start until you start showing. Have you been on any type of birth control recently?

No

My concern is that something could be wrong and my cycle went totally off and I don't know what is wrong because its not usually like this

Sooo, how long have you been having your period, and when was the last time you were intimate with someone? (are you actually concerned about pregnancy? - you haven't really mentioned that specifically.. )

I was last intimate with my boyfriend the day before my period came on and I been having my period since I was 12 but my period came on on the 6th of this month and off on the 11th and I'm not concerned about being pregnant I just want to know what to do and what could it be I know me and my boyfriend being having unprotected sex which I know is wrong and I don't have any std's because I went to the doctor to get checked

Well - I am absolutely NO expert in the medical field - but I'm still wondering if all this might be related to your period - I guess if it was me (not telling YOU what to do), I would wait a couple of days, and if the symptoms were still bothering me I would see a Dr.
(Also - STD's and pregnancy at a young age are serious life altering things - (sometimes even deadly - not pregnancy, STD's :)) you should ALWAYS use protection - As a mom of a tween, I feel the need to lecture ;) )

I really don't think your pregnant. But yes, be careful with having unprotected sex. And with this day and age it seems as if everyone's sleeping with everyone.

Oh and if you are pregnant there is nothing you can do yet. If you miss your period, take a test.

It's probably the stress of being at the top of your class at law school at age 19 without an undergrad degree.

Seeing as your other post was all about not using protection, I think it's a very real possibility that you are pregnant.

Judy, if she was able to graduate high school at 15 and go on to law school so early, I'm thinking raising a baby in law school will be a piece of cake for this one... hehe