My baby boy is 5 weeks 2 days old today and I started pumping and freezing since he was 2 weeks old. I introduced him a special medela Calma nipple for breast milk ONLY at 4.5 weeks old. Just one a day. So daddy can get in some bonding time. I've only been able to pump 2-2.5oz at a time from both breast. Been taking Milk Flow. To help me produce more milk. As of the last 2 days I've pumped. I actually pumped 4.5oz from only once breast and this morning over 5.2oz from only one boob. Soooo proud of myself. Now big bro and daddy both get to feed and bond with Mr. Bruce Wayne