So this happened

After messing around with my boyfriend (fingered me) i noticed blood on my leg then spotted his hand all red and bloody. We then tried to see if it was his hand or me bleeding, it was me. I know that he’s scratched me before as he left a scratch on my bikini area, and his nails can sometimes be jagged. Maybe he just scratched me on the inside??? I’m unsure as I never felt anything till seeing the blood? He was going pretty rough so maybe he’s stretched it?