Period Question

Katie

Hopefully this doesn’t sound dumb but yesterday I was on day 5 of my period and thought it was over and it wasn’t. I put a tampon in last night before bed and took it out this morning at like 9 and it had just a little brownish blood but I don’t know if it was from last night or this morning so not sure whether to mark my period was over last night or today. I’m leaning more towards last night. What do you guys think?