Is The Brown Discharge Due To Fingering Periods Or Something Else ?

My girlfriend fingered me on friday and I started to bleed on her hand it was brownish like the stuff I get when I first start but then wheb I put a finger inside me it come out red then stopped that night wasn t heavy but the drown stuff lasted two days then just stopped my normal period last for 7 days and on fridayI was also 5 days late on my period but I want to know whats gking on with my body