If a virgin girl take emergency contraceptive pill then what will happen??

Why?: An obvious question to consider is why would a virgin girl take a pill to avoid pregnancy? The pill is hormones that may upset the stomach for a short period of time and can affect the menstrual cycle that month.

She could experience: unnecessary side effects. Potential side effects with emergency contraception include: menstrual flow changes (spotting, bleeding, early or late period), nausea, vomiting, dizziness, fatigue, headache, breast tenderness & abdominal pain or cramps.