Had my last period on march 12(first day) , i almost had sex on march 21th ... so took a contraceptive pill ( PLAN B) on the 22st of march. Then after 3 days i had a 5 day bleeding i.e around 24th(start date), almost like my period. It is April 18th now and i still dint get my period whereas normally i shuld have it by april 12th. Was that 5 day bleeding my period? what if i dont get my period for this month? what are the odds of me being pregnant?