Hi I had sex on 24 of october I took plan b on the 27 of October i got my period on the 30th of October I was suppose to get my period on the 26 of October..... I got it 4 days late . But then I my period on November it's December 4 and I havnt gotten it u think I'm pregnat ... I'm so scare I took 3 pregnacy test all negative .. What happend please help me..