Don't! I'm just kidding. I mixed pumped milk with formula little by little. First 2/3 pumped milk and 1/3 formula, then 1/2 and 1/2, etc. The biggest challenge is to get them to take a bottle. Luckily my DD took a paci, so the bottle didn't take a lot of convincing.
at 4:33 AM on Jul. 7, 2008