Blood after fingering??

So my boyfriend fingered me today and usually he uses 2 fingers but he tried for 3 but stuck it in really deep and fast so it hurt like hell. And it was all ok after that and he did it a few more times (2 fingers) but no blood appeared to be on his fingers. Now ive come home and seen blood (not heavy) on underwear. Smells fishy too. Im not sure if im starting my period, there should be a few more days but im never regular. Could it be something else? Or maybe did my hymen break (im virgin)???? Help