Pumping

I just had my daughter 6 days ago, and I want to only pump at night. Maybe 2 bottles. I don't want to breast feed. So I was wondering if I get in a routine of only pumping at night will my boobs get used to the routine? Or will my milk dry up? Will they continue to hurt until I pump them?( due she is eating formula throughout the day. I'm not going to starve her.)