remember, supply = demand, and fairly quickly. Lots of working mums do this - express on the days that they work and just feed normally on other days. it works fine. You milk will not “just dry up” Even when you are feeding once per day, you will have enough milk for one feed per day. Toddlers don’t feed like newborns - they may only feed1 or 2 or 3 times a day and you milk supply adjusts to that.