Discharge & period help

Girls! Please respond with some help. This month, I thought I was pregnant by how weird my period was. I had light brown discharge nearly a whole week before my period was due. My period ended up coming, so obviously not pregnant. Just a weird body/period change. Only problem is, my period started the 17th. I bled for about 4 days then it all slowed down and stopped which is normal. I typically bleed heavy for few days then it’s all slowed down then gone. My period ended, well the blood at least, around the 21st ish. But now it’s a week later and I’m STILL having light brown discharge. Which normally happens after my 3/4 days of bleeding. Then stops. But it hasn’t stopped yet?!? Also has a funky smell to it. Please help!