So my friend got drunk the other night and ended up losing her virginity. Friday at 2 am. I went down to her and we got a plan b Sunday at 9pm. And I know it could've been less effective because of the 72 hour window. So it's been a week and today is Saturday night. She went pee and is now spotting and has really bad cramps. She should be getting her period on the 22nd and it's always normal. We wanna take a test but she's not sure if it'll tell this early and I doubt it either. Should we wait it out to see if she misses her period? I'm usually good with these things but I can't think straight because it's my best friend and I'm freaking out and really want a second opinion. Please help me out you guys!!