Help?!

Ok, so on Monday my fertile week ended. Tuesday, I had sex with my man and a couple hours later when I went to the bathroom I noticed some blood. It wasnt pink nor brown. When we had sex he fingered me pretty roughly. It used to be that I bled pretty often when we had sex but lately I had not been. This time though, I noticed some blood. I’m really scared thinking it’s implantation. I didn’t snap a picture because I was really freaked out and also did not have my phone. That was literally all of the blood that came out though. I wiped twice and got blood but after that I didn’t get anything else. What is this? I havent had anything else out of the ordinary happen to me. No other symptoms or anything. Also now that I’m getting closer to my period I’m getting a few PMS symptoms that I usually get. We had had sex like twice the week before.