Most mothers cannot pump colostrum, so its likely you were making it and your baby was getting it, but hte pump will not get it out. Colostrum doens't run out like milk, it sits on the nipple nad your baby basically licks it off or it comes onto his tongue.
now that being said, I have two big boys, one 8.5lbs and the other 9lbs at birth. Both had jaundice, both lost about 1 pound after birth, and NEITHER required formula. Why? because babies lose weight after birht, they have water weight and a fat layer that they build up JUST to use during the time moms milk is coming in. Losing weight is normal. Jaundice is pretty normal as well and not nearly as detrimental as doctors make it out to be, and while it CAN be dangerous, most babies have some form of jaundice after birth. Formula is not a requirement for getting rid of jaundice, again both my boys ahd it and neither required formula. My youngest had his levels get up to 21, but as my doctor todl me it'll peak and drop on the 6th day, and it did.
ANYWAY, my point is it doesn't matter what you pump, the best pump in the world doesn't 'nurse' like your baby. Your baby NEEDS the colostrum to line his tummy to keep anything from leaching into his system. Babies are born with 'leaky gut', and anything they eat leaks right into thier body through thier belly. Formula can wreak major havoc, but colostrum will line the tummy and help heal it so it closes. Its incredibly important and I dont' think people relaly realize the importance of it, and just automatically turn to formula thinking its the same thing when its not.
Anyway, when your baby is born, let him nurse, nurse, nurse. Fromula is not necessary, your baby will lose weight, thats how his body was built. He won't go hungry, his belly is teeny tiny and doesn't need a full drop of 2oz formula bottle, he needs colostrum to line his tummy. The more you nurse the quicker your milk will come in. Don't worry about pumping, you can't pump colostrum, but your baby needs it so let him nurse.