J.R.
There are lots of great websites out there to offer help (kellymom.com, workandpump.com, etc.), and there are lots of ways to help with pumping. I didn't respond to the pump at ALL with my first babe, but I am almost hitting the 8 month mark with my second exclusively breastfeeding & I went back to work full-time at 6 weeks with both of them.
I also have a Medela PIS. When I first starting pumping, I was maybe getting a total of 2 ounces per 20 minute session. I still pump for 20 minutes 2/day, and I get at least 5-6oz total per session now. My first pump of the day, about 4 hours after my daughter's last nursing, I get about 8-9oz. It's insane, but I still remember the heartbreak of only seeing those 2oz at the beginning.
Anyway - here's what my nursing friends told me that helped a ton:
- It takes time to learn how to pump. You may not respond right away, but eventually you learn what works for you. I second the notion of having a picture (even if it's closing your eyes & getting a mental picture) of your kiddo while you're nursing to stimulate letdown.
- Don't look at the bottles to see how much milk you're getting - close your eyes, breathe, relax... I do crossword puzzles & get better output. I don't know why. :)
- Pump one side while your baby nurses the other. It can be tricky to juggle, but it works!
- Get a hands-free pumping bustier. It lets you do something else while you're pumping (surfing the internet, reading a book, doing a crossword, etc.), so you aren't laser-focused on your output.
- Above all, ask for help! You're already doing that & there are lots of awesome mamas out there just itching to share what they know.
Remember your baby is far more efficient than your pump, so when she nurses she's doing a better job of extracting milk & keeping up your supply. If you still feel like you're having supply issues, check into some supply boosters or even make some lactation cookies. They are super yummy & the brewer's yeast really does enhance your supply almost immediately. You can google for a recipe (they usually contain flax meal & brewer's yeast). It's a yummy way to enhance supply, but it won't cause lactation if you're not lactating (my husband & son both like them, but don't make milk!).
Also, kellymom & workandpump both have great information on bottle-feeding a breastfed baby. Many breastfed babies just don't take in as much milk at one feeding as formula fed babies. I know my "off the charts" 7 month old never eats more than 3-4 ounces in one bottle feeding, but is satisfied for about 3 hours in between feedings.
You've already done a wonderful thing for your little girl by nursing her this long. I also echo what another mom said - if you have to supplement with formula, don't feel like a failure. You have to do what's best for you & your daughter, no matter how you choose to feed her. :)
Good luck!