FTM double or single pump, feeding one side

Sara • First Time Mama🤱😍 Mermaid at heart🧜‍♀️❤ Chandler Bing is my spirit animal😆🐾

My little guy gets all he needs from one boob each feeding. Only occasionally does he need the second one. I'm going back to work soon and I'm not sure if I should be double pumping or single pumping?

When I've tried it, I produce about 1/3 of the total amount from the side he last fed on and the other 2/3 from the one that would be next. Should I just double pump and save any extra for a rainy day?