Pumping question

Hello 😊 my daughter is 5 days old and were exclusively pumping. She eats about 2oz a feed currently. I pump anywhere between 2-4oz per side, and pump every 2 hrs during the day and one night pump. At the moment I have anout 20 feelings or so in the fridge. Is that enough to start freezing some of my sessions? Ftm and want to get a decent stock pile before I go back to work in October. Thanks