HELP!!! Brown discharge?!

I had my first time about 3 weeks ago and took the morning after pill. About 4 days ago I started spotting brown blood with weird clots. This happened right after I took the pill so I’m not sure what this could be. I don’t think it’s implantation bleeding because that’s usually light spotting while this is all day every day and somewhat heavier than spotting. Every time I wipe it appears and looks almost dry (this is a surprisingly little amount). I have no clue what it is or what to do. Help?!