Does this sound like implantation cramping orrr?

I had unprotected sex on the 13th (lol funny i just realized that’s friday the 13th how fitting!) I have already had my period, started the 14th ended the 17th/18th. It was lighter than usual. But today I’m experiencing some cramping in my uterus. It isn’t intense like period cramping I’ve experienced before but definitely noticeable. Also I will mention that I did have sex with my partner on the 8th but had taken a Plan B that same day so maybe that’s what is causing the cramping? No clue lol, looking for advice. I don’t have a 2 week wait in me to find out if I may be pregnant or not 😂. Thank you to any ladies that have read this far! ❤️