Today is my first day back to work. Im using freemie but was disappointed with the results which was 155ml for 30mins but breast still feeling not empty. So decided to hand express on my next round pump which got me 240ml at 40mins. Felt freemie not suitable for me... shd i try few more rounds? Also if its okay to put the unwashed pump parts in ziplock bag in fridge for the next round pump? Anyadvice?