Get yourself (or rent) an electric, hospital grade, double action breast
pump. This is needed for the best results (hospital grade pumps are built to
establish milk supply) Electric breast pumps cannot be compared to hand
pumps, but can be replaced by a manual breast pump once your milk supply
Make certain that your breasts are lubricated before pumping. Lansinoh, olive oil and even your own breast milk will work well for this; this will also help for sore nipples. (Do not use your own milk, if you suspect a thrush infection – it could make it worse!)
Pump at least eight times a day.
Have a comfortable place to pump with a pumping station already set up for you.
Make sure that you have good back support while pumping.
Extra flanges and bottles can help, this will reduce the need to wash them immediately after pumping.
If you do not produce enough milk, the best thing to do, is to find a donor milk bank near you, so that you can supplement with breast milk, but it is
okay if you need to supplement with formula; just keep to your pumping
schedule and your milk supply with increase. Any amount of breast milk
will benefit your baby.
Instead of cleaning your pump after every use, put the parts in a ziplock bag and store it in the refrigerator as soon as you finish pumping. This will save you a considerable amount of cleaning time each day, which you can use to relax or spend with your baby. Just remember to wash it once a day to be on the safe side. (source)
Benefits of Exclusive Pumping
The Benefits of Pumping and Feeding Expressed Milk
It provides a way for a mother to still feed her baby precious breast milk if breastfeeding does not work out.