Am I still in my period?

Michelle
Please don't laugh or make rude comments. Lol. I never asked my OBGYN about this because I'm very embarrassed. I always wonder, when you're in your period, and then after the 4th or 5th day when I wipe (from peeing) I see brown. Am I spotting or still in my period?
I always wonder because when asked how long my cycle is I don't know if to count those days when I see brown. 
Any helpful tips or knowledge about this is helpful. I tried looking up online but I just get more confused than I am. 
Thanks so much guys and appreciate it :)