me and my gf had sex dec 24 and the condom sliped i stoped right away and pulled it out we went to get plan b an hour after she took plan b she got her period jan 4th 2007 and now it is march 3 and she has got some spotting some bleeding and evyerhting else but she said hse hasnt got any period and she is expecting this week sometiem??????? should i be scared like what is going on????