my period supposed to be April 26 but it came May 4.. I had sex April 15 and i've been spotting April 20.. my period on May 4 only lasted for 2days which is unusual and i had sex again May 7th then now i feel different, i felt like throwing up and headache and i always feel like eating.. is it possible that im pregnant? But i had period last may 4th for 2days.. please answer me... thanks