My period is not normal have gone 8 months without getting it, September and October got my period for 7days each and around the same date,now on November 20th I thought I got my period but this time only last for 2days. I'm 21yrs old have been trying to get pregnant, have been feeling dizzy like fainting and breast tender a little. So my question is why did I have my period 2days only? Why does it hurt when sexual active? Could I be pregnant and not know it?