First off, I'm 18 and have been with my boyfriend for 4 years(exclusive) we have recently had sex without any protection..
Anyways, my period was due 3 days ago/today being the 3rd day. On day 1 I had light red blood for half the day, that's night I got a LOT of brown discharge and it lasted till the next morning/evening. Since then I haven't had any bleeding besides a little bit of pink when I wipe. I don't even need a pad. Is it possible this is implantation bleeding? Also, I'm not trying to get pregnant and please don't come at me with getting protected and whatnot, I understand that all and it will be taken care of but as I'm only 18 and never had a child, this is a nerve wrecking. I just need a little insight!