am i pregnant?

[b] :huh: hi everyone my name is Carolina and i am 17 years old…the last time i got my rag was on FEBRUARY 8TH, 2006 AND IT IS MARCH 11TH 2006 and still no rag…ive been getting little pains (cramps), i usually get tenderness in breasts when i am about to get my rag and i havent had the tenderness in breasts feeling, sometimes i feel tired, sleepy (everyday around 11:30 i feel so sleepy that i fall asleep during class and that has never happened), i feel queasy most of the time, and MY TUMMY FEELS WEIRD, OH I HAVE BEEN URINATING MORE THAN USUAL, i just feel pregnant…can anyone tell me whatz going on? please…thank you…