My period ended on the 3rd. Had sex like 3-4 times with my fiancé since then. And yesterday I randomly had a little bit of brownish discharge on my white underwear which is random cause that has never happened to me before. Only time I get brownish discharge is before starting my period or after my period is going away but getting a little brown discharge a week after my period was over was odd. And everything has been normal since. Any ideas on why? I looked up implantation bleeding cause I didn’t really know what that was or how it worked but sounds like implantation bleeding happens like a few days before your period so I figured it couldn’t have been that...right?