Hey m 17 years old and i had unprotected sex on the 1st and he did cum in me. But on the 12th i had my periods. Well it lated for 3 days only n on the third day it was very less. I took pills rit after having sex but m still scared i mit be pregnant. My stomach feels bloated all the time and m eating a lot n i get headache all the time! Can i be pregnant?