In a boarding school a lesson was going on in class when a student (girl) came in obviously late.The teacher out of annoyance scolded the girl for coming late saying she was late and missed the period.Immediately the girl started crying aloud;the teacher suprised and at the same time angry asked why she was crying,she sobbed for a while after which she said"I haven't missed my period,i am not pregnant;why should you say i'm pregnant or am i? ".