Re: Bairly an Oz each pump :(
Do you mean a Medela Pump in Style? It's a double electric pump, comes with a nice bag. It's also a good pump, but not necessarily good enough when you're having supply problems. I would contact the hospital where your baby was born, or your local lactation consultants, or your local La Leche League, or your local medical supply store, and ask them where you can get a hospital-grade rental pump. They generally cost about $3 per day- which is actually competitive with the cost of formula. At $3/day, a 12 month pump rental will cost around $720, whereas a year's supply of formula is around $1500-2000.
Your calorie intake is very unlikely to impact your milk supply unless you are LITERALLY starving. The female body is designed to provide nourishing milk even if the mom herself is hungry- that's why moms can nurse their children through stress and war and even a certain degree of famine. If you gained weight during pregnancy, or even if you didn't but happen to have a couple of extra pounds having around, think of that weight as the reserve that will create breastmilk even when your calorie intake doesn't match your calorie output.
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"