Hi, My girlfriend and I had unprotected sex on 13th. And just within 1 hour she took unwanted 72. After that her periods got delayed. It generally arrives by 15th every month. But this month it still hasn't arrived yet. Though she is having cramps from last 3 days. Also there's a little bit of dizziness. Is it because of the effect of the medicine taken? Or is there any chance of getting pregnant?