If somehow you are unable to breastfeed directly, but still want your child to have the benefits of breast milk, renting a breast pump may be an option. I am currently renting the Medela Lactina from the hospital for $35 a month. It is meant for long term pumping, unlike many of the pumps on the market. Many are meant only for occasional use. Spare parts for the Medela Lactina are sold at online stores such as Amazon.
I may eventually get a different one, perhaps the hand’s free, also from Medela. For right now, the Lactina is working for me until I am able to breast feed my preemie directly.