@dinofreak I bought a very similar 4-pack and love them too! Mine didn't come with an extender though so I'll need to get one of those. My thin work blouses will show all the lines and seams on nursing bras right through them so I can't totally ditch my VS underwire
I wasn't in maternity with my first for a while either but I should've just switched! The belly band is cool and all but maternity pants are so comfortable haha. I would try to look for stretchy/elastic waist type of things that you can also wear post partum(especially if you plan to return to work because you probably won't be back in your regular stuff). I agree with buying used, I see so much in local Facebook groups for maternity clothes. Look for a local moms Facebook group and put out an ISO post? Related- anyone planning to do stitch fix maternity? I did it with my last when it was brand new and I was disappointed but my friend had some luck. There is apparently a stitch fix maternity BST group too!
Baby #3 on the way due 8/19/17