Hi there. Yes, u will need to pump still if u wish to maintain ur supply. There are 2 ways to count pumping sessions. One way is to pump x hourly (or latch x hourly) ad the other way is to use the breast x times in a 24 hr period (may be pump or latch). So as long as "how much u use ur boobs" does not change, then ur supply will not change. So it depends on if u want to maintain ur supply? U might not want to not use ur boobs for such a long stretch too, in case of engorgement? So u need to pump or reconsider the timings of ur pump/latch