Hi, my period is 6 days late, I've never had sex to my knowledge but I have been to two parties recently where I got drunk but I am pretty sure I remember each night and I did nothing with any guy. By it could be a slight possibility I might of touched something with sperm on it but I severely doubt that. And anyway the first party I started my period (which was on time) that night. The second party was th  other day (Friday), yet again j remember the whole night an  unless someone drugged me, th  only way I could of got pregnant is by touching something with sperm on then touched myself !