Pain, bleeding, etc with Paragaurd

Shelby
I just got my Paragaurd put in on Saturday.
How long does the pain last? 
It was HORRIBLE on the first day and pretty bad the second.. I'm on the third day and it's been on and off but still crampy.
Also the discharge is... Weird.
It was very red at first.. Then brown.. Now it's a pink? 
When will my body be back to normal? Lol