FYI to any military moms reading this - Tricare won't cover it unless there is a medical reason (baby is NICU, etc). They are not affected by the health care changes. I used to have a link to the page that talked about it, but Tricare removed that page from their website.
You can still look up "breast pump" on the Tricare website, and it will give you the info about under what circumstances they will cover it.