Pumping for the older baby?

that's a tough one - could you maybe try to stop pumping just on the two days when you're in multiple offices? during that week, maybe eat oatmeal for breakfast and make sure you drink tons of water to try and keep your supply from dwindling. if everything seems OK when you nurse on the weekends, then you can try it for a second week. if after a few weeks your supply seems stable, you could try cutting out one other pumping session, and do that every couple of weeks until you're not pumping at all. all the while, keeping a close eye on your supply, drinking tons of water, eating oatmeal, maybe drinking some fenugreek tea, etc. and adding back a session if you need to.

it seems like if you just try to completely stop, your supply will plummet. but if you do it gradually, maybe your body can adjust more easily?

i'm not speaking from experience, so take this with a grain of salt... just an idea. do you have a LC you could talk to? they might have good ideas about how to keep your supply up if you stop pumping.

I didn't notice a drop in supply after I quit pumping, but I was still nursing 4-5 times a night at that point. I would occasionally have a Saturday when it felt like DD would ask to nurse every 3 minutes, so maybe she was reacting to a supply dip. So, this may be something that varies with the personality of the child. My daughter will not be swayed from her nu-nu.

My main concern with stopping pumping was nutrition. You say she doesn't drink any non-mama milk. Is that because you haven't tried it or because she doesn't tolerate it?

As long as you're nursing 4-5 times a day, she'll get enough calcium and other goodies that you don't need to worry about supplementing with cow's/soy milk. I worked out the numbers once on calcium concentrations/bioavailability in cow's milk vs breastmilk and figured that a 1 year old needs something like 30-35 oz of breastmilk to fullfill all calcium needs.

I haven't tried any non-mama milk. I know she gets plenty now because she nurses through the night and morning/evening and some days she'll drink as much as 12 oz of ebm, although 8 oz is more common. I'm really mostly worried about a supply dip more than anything. She drinks well from a sippy, or even a regular cup, or a straw, she's just not crazy about milk from a non-mama container!
Today she doesn't feel well (103.6 temp!) and she is currently lying in my arms nursing determinedly, so I think maybe I'll pump a while longer. I'd sure like to hang up the horns, but I want her to have her milk even more. At the rate of about 2 oz a day freezer stash use, I have enough milk for like 40 more work weeks! With previous children I've suffered from lack of freezer stash, so I guess I should just be happy!

I pumped overnight on call until my last 2 weaned, even though I had stopped pumping during a regular day. Fortunately, I don't do that type of call anymore! Although, I do have to hang out with laboring moms sometimes, and if I'm up at night for a delivery I pump a couple of times since she nurses at night still and I definitely feel fuller at night if I miss a session than during the day.
I gently weaned my oldest at 15 mos, because I thought that's what you were supposed to do. I intended to let all my future children self-wean, but Catherine weaned at 20 mos or so because I was pregnant with Justin. Then Justin woke up one day at 16 mos on a nursing strike, and was never really persuaded to nurse again. He nursed 3 more weeks if he was dead asleep, then started to wake up and scream and refuse even in his sleep. I was really heartbroken over this weaning, and still feel like maybe I let my supply drop since I was so tired of pumping and was an intern at the time.
I don't want little dd to wean before she's good and ready, so I guess it's worth it to pump to keep up milk for her.
I'm sure if you're pumping for a 2 year old as a PGY4 you'll create quite a stir. Actually, though, when I was pumping in med school I found the surgeons to be more supportive than any other speciality. The OB/gyns were absolutely awful and thought I was crazy to pump for a 5 month old, let alone a toddler!