I am 17 year old female. On 12th june we did intercourse using condom but because of contraceptive failure we did notice at last that it will create a problem for us. After (intercourse) 2 hours I take unwanted 72. My periods due date is on 24th so, I want to ask doctor that this pill will work or not? And will my periods are on date or not? I am consuming ginger tea to prepare my periods. So, this will work or not? Please help me doctor. We both are in panic mode. Urgently needed reply!