Pumping question

Is it okay to pump a few times a day, store in the fridge, and then combine all contents at the end of the day after separate pumping sessions and transport to the freezer? Like say if I pump 3 times a day and only get 2 oz at a time can I store those until I have enough to put in a freezer bag altogether at the end of the day? Lol sorry if that’s a stupid question im a newb and I’m going back to work soon so I’m trying to stock up.