question: hi.. my periods started on 14th april and lasted for 3 days. even though the bleeding was normal.. the length of time for which bleeding occurred was short.. usually bleeding goes on till 5th day.. i had unprotected sex on19th april and i took i pill within 3-4 hours but i have not experienced any bleeding or side effect even after 6 days of taking the pill. this was the first time i used i pill. am i pregnant?