question: Hi Doctor, I am 20. Had unprotected sex on Saturday evening, waited until Monday evening to consume Postinor. Was on the 14th day of my cycle when intercourse happened but waited until the 16th to get the pill. I was wondering, could I be pregnant? Could you please explain about fertile phase and ovulation? And what will happen when sperms are present (because sperms can live up to 5 days, correct?) Appreciated it so much because I am quite anxious as I m currently studying in college. Thank you.