I had unprotected sex on Monday for honestly 2min, my boyfriend nutted quick, but he took it out fast when he knew he was going to nut. I took plan B right away. I was suppose to get my period 5 days after. I know that when you take Plan B your cycle changes. Now I'm 1 day late. Can that mean that I'm pregnant? Or my cycle just got messed up because i took Plan B? Help please!