My son is 6 weeks old. He was born at 36 weeks weighing 5lbs 11oz and was 5lbs 3 oz when leaving the hospital so we were worried about his weight. He is breastfeeding and it's been going well but I have to go back and I work suddenly and wasn't prepared so I've been pumping like crazy trying to get milk.. I only get about an oz between both breasts., I feel like I'm taking all his milk. This has been going on for four days.