Plan b ? Am I okay

Took plan b July 7th 15 hours after sex , we used protection but he pulled out took the condom off and came on my stomach then started fingering me but then when he went to switch hands I think he might’ve gotten cum on his finger and started fingering me, anyways the whole week after taking plan b I had horrible cramping and now my period is pose to start tomorrow and my boobs are a little sore but I don’t feel like it’s coming like I did before so I’m kinda freaking out , do you think I am okay? Also it was one of my ovulations days or so that’s what this app said