The Glamorous Newlywed styled me for the office with special consideration for my ball and chain, aka the breast pump.
As I've said before, the girl is gifted. Check out her blog for any number of occasions that you need stylish, yet affordable threads.
My favorite ensemble is the gray and coral--snazzy
|c/o Glamorous Newlywed @ Polyvore
...and she has no idea how well she hit the nail on the head with the black and gold.
Oh, and I especially appreciated the hands-free bra suggestion--MUCH better than mine.
Good stuff! I hope it helps you or a nursing mom you know too!