>> “If she pumps and saves the milk one weekend, it will spoil before next weekend.” <<
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No, it will not, as long as it is kept below 33 degrees.
Yes, it can be frozen. However, how will the process start since it is supply and demand. Will she have to start pumping in between feedings to increase her supply with baby not getting enough until it increases? What kind of a douche bag does this to his child?
Our girls were preemies and in the hospital for 6 weeks and on IV. My wife had to pump to keep the supply going, and has we weened them onto breast milk. Between our upstairs and downstairs freezers, and two of the neighbor’s freezers there was never a shortage!
Even once they were home, with two of them it was one on a breast for a bit while the other on a bottle, and then switch them halfway through! (I look fondly back at the photos of those days ignoring the reality of it all!)