Period w/ sex concerns

So here I am on the 4th day of my period and I was really horny so I decided to have sex! My flow was currently medium/light because I smoked so it kinda lightens my flow and helps me stop cramping. Me and significant other had sex with a condom but once we were finished the condom wasn’t where it was so supposed to be, as I looked down it was stuck inside my vagina, so I pulled it out and of course it had a hole in it and my blood. Any advice on whether I should take a plan B or not btw it’s already the 2 day. My period is currently still on this is my last day but my flow picked back up heavy.