I had my periods from 20th june -23rd june my menstrual cycle is of 28 days. I had safe sex with my partner on 3rd july but the condom broke. I took unwanted 72 after 20 hours of having sex. I there a chance that I'll still conceive I missed my periods by 3 days delay. Is this the effect of the tablet or I'll be pregnant. I did a pregnancy test 6 days before n it showed -ve .but still I didn't get my periods. Plzzz suggest me some medicine that will ensure my MC. I did the test again n it again showed -ve. I am really very worried I also took m p forte medicine for my periods to come early but it didn't.plzzzz doctor help me out I am really very much worried. It's been 13 days of my periods delay. Plzzz doctor help me out .what would be the reason for so much delay in my periods? Plzz doctor reply me as soon as possible.