What Are The Chances Of Pregnancy After Taking ECP?

dear dr. im 22 years .me and my fiancee we were foolin around.and he touched my clit with his fingers and moved his penis on my genitalia for about 30 seconds and then he withdrawed him self before he ejaculated in about 30 sec to 1 min and uh my hymen still intact i mean there was no penetration only rubbing .. my last period was on the 28th of december 2010 but its not regular and those things happened on 14 of jan 2011.. after than in 24 hour i recieved ECP what are my chances of being pregnant . plz help bcuz i live in an area if they know im pregnant they gonna kill me im soo anxious plz help as soon as possible :(