So my girlfriend is suppose to get her period in early June but it's the 12th day and she still hasn't got it so here's the thing me and girlfriend took plan b late April she got her period early May but now she's late also we messed around twice in May the first time I fingered her but did not penetrate her with my private part and of course we dry humped and everytime I fingered her I would use hand sanitizer before in case my hand had pre cum or anything like that and as for the second time i didn't figure her just dry humped but I was wearing my boxers and my gym shorts so the real question could she be pregnant??? Is the plan b still taking effect because doesn't the plan b mess up the period cycle??? Anyways please help!!!