Basically, yes. If you want to maintain your supply, you should really pump around the same time as you would bf. To increase supply or have some extra milk, you can pump after a feed or at another time during the day. To a certain extent, extra pumpings will increase your overall supply, but it's really more that your breasts expect to need to produce milk at that time of day. So, for instance when your lo is sleeping through the night, after a couple of nights or so, you stop getting engorged because your breasts *know* that you don't need the milk at that time anymore. They might still be fuller in the morning, but over time, if you don't use or pump the milk from first thing in the morning, you'll stop being as full then too. HTH!