Depending on how much you want to nurse, you willneed to be pumpin alot more at work. WHen I am nursing/working my schedule follows like this: nurse before we leave then I pump while driving( always secretly wanted to get pulled over just to se the shock!) I get to work at 7:30 so I pump every 2 hours all day along with 1 nursing at lunch( my daycare is close) then we co-sleep so the night nursng is frequent.
Now, my cycles come back very early and I have a hard time maintaining a suply anyway, but pumping is not as effective as baby nursing so you will ee a decline when pumping more than nursing.
I also wonder which pump you are using. For my clients ( i am a doula and childbirth educator) I reccomend at least a MEdela pump in style. Its what I use, and a car adapter makes it more efective. A quality pump can make a world of diference.
IF the herbal suppliments arent doing the job then you can move on to the pharmaceuticals. I personally use Domperidone which I order from New Zealand bc you cannt get it easily in the US.Sometimes you have to take a very very high dose of herbals to start the supply, but unless you are nursing regularly, they really wont do any good. But you mighttry, Mothers Milk Plus tincture ( at Simply Moms inside Baylore Hospital) or Mothers Milk Tea from Traditional Medicinals.
Fel free to pm me if you need more help.
K