Help a sister out

Taylor
So the other day my boyfriend was fingering me and there was a little blood mixed with other female junk ( ya know ) and it stopped after about an hour and I was okay. I got home from school today and there was thick brown discharge on my panties.  Could it be related? 
We have not had sex yet. I was not ovulating at the time so there's no chance of pregnancy. 
Just let me know what you guys think. Please and thank you!