I began pumping three days ago and have been doing so every 2-3 hours. My son is 4 weeks and just began helping mom today. I got him to suck for about 10 min before he became upset that he wasn't getting as much as he wanted. I'm just becoming frustrated because it doesn't seem like I'm increasing my milk supply at all. The first time I pumped I got a half an ounce out. I still can't get more than that! Why aren't things getting better? Do I just need to be more patient?