Breast Feeding

My first pregnancy I felt an overwhelming amount of postpartum depression and I knew that breast feeding would make it worse because my body was so tired from my terrible pregnancy. I have decided this time since I am going to be staying at home that I am going to breast feed. I am just wondering if most people order their pump through their insurance / how you go about doing that? Also, are there any other products or things that are a must have whenever breast feeding?