What made me bleed??? 🙉🙈🙊 "***TMI"***

So me and my SO did our thing.... then he goes to finger me (it wasn't super rough) and after a little while he looked up at me and was like"babe.....uh you're bleeding" 😱 and I'm off my period I know that... so I said to him "wtf babe sorry it's so embarrassing" and he calmly said its okay it's natural don't worry about it love....❤😍 could he have finished breaking my hymen?We have been sexuality active before and I didn't bleed only this one time.. he is (pretty big😋) tho what else could it be??? I'm not super worried so I'm not going to call my doctor... my SO told me to put ice on my vag... LOL help me out..... ** it's not his fingernails he has short fingernails anyways**