I think I could be pregnant...I was late for my period, then it came yesterday; lasted for ten minutes then went away again. i still feel the craps though and i had had nausea, felt sick but havnt been sick, headaches,bloatedness, and my breast are very sore. I have worked out i am not much late for my period but I have taken two tests which both have come back negative. Im 17 years old
No you are not pregnant.  If tests are negative then chances that you are pregnant is very, very less.  These are normal premenstrual symptoms.