Sounds like only he will know if he "devirginated" you. If you had intercourse (his penis went into your vagina), you are no longer a virgin.
If you still had an intact hymen and he tore it in the process, you can bleed but I would think that that bleeding would have stopped before your period ended.
Brown blood is normally old blood so it could be some old menstrual blood still coming out. It can however also be from an infection or STD.. If you have doubts, see a health care provider.