is this normal ?

sorry for the tmi but before my boyfriend and i had sex, first he fingered my clit then went in with his fingers in my vagina and started flingering it to rough. i told him to slow down and he did. when he pulled out his fingers, there was blood. my question is, was it from him being to rough? im just got done having my period almost 2 weeks ago and i have PCOS so im alittle confused