Spotting issues? HELP!

Corinn
Soooooooo I've been on birth control for almost 1&1/2 years! I've never had any issues with spotting or anything like that.
 I am sexually active and me and my SO had sex and the condom broke yesterday, But I told him not to freak because I was on the pill! 
I'm on a low-dosage hormonal pill called Lutera, and the past two days I've been having strange spotting. It started pinkish and not very noticeable, but today it was thicker and brown! It's kinda painful and I've been cramping a bit too, even though my period is a week away!
And tips/ help/ explication? Is this normal?