Bleeding after rough sex?

Okay so last Saturday and Sunday my boyfriend and I had sex, rougher than usual but it was good, and Sunday afternoon I started bleeding the tiniest bit but it was a light pinkish.

I guess I can say it’s just spotting but over the last 3 days the bleeding has gotten heavier, not murder scene heavy but it’s heavier than my usual light periods and very light spotting since I got the rod in my arm. It’s probably the most blood I’ve seen in a year, Im sure it’s not overly serious but I just wanted to know what you girls here thought xx