On March 13 i started my period and ended it March 19 i finished my period. On March 20 i had unprotected sex. On March 22 i took the pill so i wont be pregnant. On March 26 i started cramping. March 27 i got dizzy all of a sudden. March 28 i started bleeding like a menstrual period my cramps are slightly they dont hurt much my blood is as it would be in a regular period. To date March 29 im still bleeding. What can this be?