My period

Lisabet
So I started my period on the 20th and started out as brown as usually, very light. And then on the 21st it was red and still sorta light. I only filled my cup up once when I usually fill it up 2-3 times daily. Yesterday it was back to being light and brown again. So I took my cup out and used a pad instead to monitor the blood better.
This morning when I woke up there was absolutely no blood and when I wiped it was just completely brown. 
Any ideas?