preparing before conception

Me & Hubby are TTC baby #3 (our rainbow baby) but ive been looking in the market place for stuff we could use for the new baby. but i wanted peoples input on a used breast pump. i breast fed our son for 3 almost 4 months and id like to do it longer with a new baby. i stopped because renting a pump from the hospital got too expensive. didnt EBF because it was uncomfortable.