Bleeding after sex HELP!!

You guys I need help!! I have a new “friend” who is let’s say a lot larger & thicker than my ex. But anyway we got freaky Saturday/Sunday and I started lightly bleeding on Monday keep in mind my period isn’t supposed to start for another 2 weeks. Has this happened to any of y’all or should I be concerned? I’m a grown woman & this has never happened to me so I’m a little lost 😂