help

Ok I justed had a little girl shes is buteful BUT we chose to give her up fo r adoption And I breastfeed her in the hosptail and I am now pumping for her... BUT I am getting more milk then they thought I would and I need to know IF I can put the milk in ziplock freezer bags I don't want to pump and have to thow it out its like gold for her and its doing me a world of good to be doing this for her... Kathy