Birth control after baby?

Kayla • Married & we had our perfect baby boy on 03/21/2015, Pierce Huntlee. He was 7lbs 10oz, & 19.5 in 💙
What is everyone doing for birth control now that babies are born? 
I am getting the copper iud, paragaurd. Anyone had this before? 
I was on nuvaring before but with breastfeeding they say not to use birth controls with estrogen in them.