Hmmm. . . . digging in the archives here. . . . it's been 15.5 years since I had my last child!
I had a simple wardrobe. . . . some borrowed. . . . some new. . . .
I wore jumpers (dresses with lots of room). . . . overalls. . . .
I hated the maternity pants with elastic panels in the front.
I did find some clothes in catalogs. . . . back when I had my children the clothes were hideous. . . . those ugly maternity shirts with arrows pointing down "Baby Here". Aaack!
I think maternity clothes have come a long way since then!
As for nursing bras. . . . I had a few. . . . along with nursing nightgowns and button down shirts. Unfortunately, I was not able to feed my kids. . . . my daughter had complications during birth and was in the intensive care nursery for 1.5 weeks so my breast feeding was delayed (that's what I blamed it on).
When I had my son, I started feeding him right away. No matter how determined I was. . . . his pediatrician said he was not thriving. I was in the small percentage of women who cannot breast feed.
I was actually relieved to hear that. . . . because it was frustrating to have my son crying so much (from being hungry). . . .and once I switched to bottled milk, he slept so much better.
Do they offer child birth classes where you live? You really should sign up. . . . you will find them very helpful to answer your questions. The hospital where I delivered had a special library for new parents. . . . they offered lots of classes, books & literature.