pumping to go back to work

C
Question ladies... I've been on maternity leave but I go back to work next week. I've been pumping once a day between feedings to get a little stockpile of milk in the freezer. I usually get about 3 oz each time I pump, sometimes more. I'll be working full time Monday through Friday when I go back. 
My question is on the weekends do you think I could/should continue with my current schedule of pumping once between feedings? If I did I could continue to get an extra feeding in the freezer each week. Thoughts, comments or help would be appreciated!