my baby is about 5 months and I will have to go to the office from July 1st 2025, I want to give her breast milk only atleast for July so that after 6 months she can have other things also. but how can I store breast milk and which store bags are good and which type of bottle to be used, these are my issues and also I have purchased an electric breast milk pump for her so that during office I can store the milk for her . please suggest,this is very urgent