Hello! I’m exclusively pumping with my daughter and am wondering on how people store their milk?

My pumping schedule has me about 3 days ahead. I’m pumping a little bit more then she’s eating so I automatically put the extra milk in the freezer. I keep the rest in the fridge though I know milk is good in the fridge for 4 days should I be freezing all of it?

I also do the pitcher method since I pump different amounts throughout the day so I bag everything at the end of the day.