Actually we had unprotected non penetrative sex i just rubbed my penis near her anal and i cummed  near her anal may be it dripped to vulva (outside of vagina) (but we're not sure about it). In fear of unwanated pregnancy i suggest her to take unwanted 72 pills which she taken on 3rd day after sex but before 72 hours and now she missed her periods 3 days of her menstrual cycle and I'm in very fear and scared of pregnancy. Please tell me is there any chances of pregnancy?? Should i be concerned or be tension free?? Please help me it was my first time and I'm in very stressful situation.