"i had unprotected sex on may 29th. the pull out method was not used (alcohol was involved). i took the day after pill about 4-5 hours after sex. i am 5&#039;5&quot; and 168 lbs. found out the pill did not work and i am in fact pregnant. took 3 pregnancy tests on june 19th... all positive. i am not sure if it was my weight or possible alcohol involved on why the pill did not work?"