question: Dear Sir/Madam, I am in a confusing situation as me and my girlfriend had unprotected sex once out of the three sessions we had. As it was for the first time for both of us its been a bit confusing situation for us as we used protection during two of the sessions,but couldnt opt for any in one of the sessions. Still we manged to make use of ECP unwanted 72 just 2 hours after we had intercourse.I didnt ejaculated during either of the three days,but even after taking the unwanted 72 pills her periods are delayed.We had intercourse on 1st, 4th & 5th of December 2013 from which we didnt use protection on the 4th of December but managed to opt for emergency contraceptive pill. My girlfriend was expecting her periods on the 8th of December but even after four days she didnt have her periods yet. We both need things safe so we want to make sure what are the chances of her being pregnant and what are the possible causes for her periods to get delayed and are things to be worried of yet...To be honest i love my girlfriend and wouldnt want her to go through things such as abortion,so hopefully i expect things to be safer for her...Please help...