Should my period come about 24 hours after I take NuvaRing out?

Hey girls. So, yesterday morning I took my NuvaRing out. Today I was having sex with my boyfriend and first time was OK, we got clean and it was just the usual stuff. About 15 minutes later we went again and this time when I cleaned myself there was a lot of blood, and we were unsure if it was his or mine. I usually have my period about three days after I take NuvaRing out, could it be my period? And does this mean NuvaRing is not working properly? Thanks in advance!