Congratulations to those who got IP

I was wondering...is it possible to have an interview even after IP? What stage is our file when the status is IP? I ask because my spouse's meds were requested on OCT 30 and status changed to IP on the same day. Initial meds were done in June 2013 and app was filed on Jan 2014. I'm really confused.
Should I order notes to see if I am recommended for an interview or not? If I am, I will try to send more proof of communication, etc. Am I over thinking here? The wait is getting to me now