I can only tell you my experience. I also travel for work – usually home for a few weeks then away for several days. I have been doing this since my daughter was 2 months old – now she is 4.5 months. My daughter nurses every three hours during the day and then every 6 hours at night. I can’t ever match this when I travel – between the flights and then I teach a class when I get where I am going. So I will pump first thing in the morning (I don’t wake to pump at night so I am really full in the morning – and it takes me a lot longer than normal. After I get ready (about an hour later) I will pump about 5-10 more minutes just to get any new milk out so I am totally empty before leaving. Then will usually end up pumping 5-6 hours later. Then 5-6 hours after that. Usually by then I am somewhere where I can pump every three hours until I go to bed. Then when I get home I just go back to feeding her normally. I freeze the milk I bring back and have supply for next time. I haven’t had any problems with my milk supply. It seems to adjust back to normal as soon as I get home. I think the key is to try to match as much as possible – but don’t stress on the times you can’t. I look at it this way – if you have to work – then it is better to try to keep nursing as long as you can and if your milk supply dries – it dries. But better to try then not try at all.
Also – I was pretty paranoid about my milk supply as well. So I started using this mother’s milk tea. When I feel like my supply is low – I use it. It says to use one table spoon for one cup of water – but I usually just use one tablespoon for several cups. It seems to help – although it could just be the extra water intake ;-) I know you can also get a medication from doctor if it starts to dry up and you really want to keep nursing – but I wouldn’t really worry about that until you need it.
Just a few hints -- I would also invest in a good electric pump. I have the medella pump in the metro bag. It is stylish. I really like it. It will be worth the extra cost to get a good pump. I usually take with me 4 sets of pump materials (connector, shield, etc) and about 8 bottles. I also bought a bottle brush to take with me, a burp cloth and a small container of dish soap – airport size ;-) That way I can pump several times during the day without having to wash stuff (because I often have to pump in bathrooms – even at the airport once . After I pump I just rinse and put everything in a plastic bag. You can get wipes – but I find that a wet wipe works just as well if you don’t plan to use it again before washing. I don’t know if airline staff have to follow the same rules as other passengers – but you can take your milk through airport security. I keep it all in cooler packs and I pull out my pump and my milk and put them in a separate tray and haven’t had any problems – except for the time I left the lanolin in the pocket of the pump and they inspected my pump. If you want to take bags instead of bottles for storage I find the gerber bags to be the best – they don’t seem to leak for me. The Medellas leaked really badly. I would take a big ziplock bag though to put the smaller bags in – just in case though. I keep a black sharpie in the suitcase as well to write on the bags.
I am using those breastfeeding bottles from first years – the ones with two nipples that is supposed to simulate breastfeeding. I like those. She seems to adjust back and forth pretty easily.
My biggest challenge was trying to figure out exactly how much she would be consuming at each feeding to have enough for a bottle but not having a bunch of milk dumped down the drain because she didn’t consume it all. I still struggle with that.
Okay – that was probably way more than you wanted to know. But just trying to help.