Daphne,
Think 2 weeks prior when u are returning to work, u need to cut down ur 3 hr pump supply, unless u are going to stick to the same schedule , bring pump to pump @ office, then is oki.
If not, confirm ur bm will leak like no body business if u dun pump as per schedule... as ur body is "schedules" to release milk.
My boy now take 120ml forumla milk, 110ml breast milk... kee kee. think he dun like my breast milk that much , sometimes cannot finish oso... wahaha