Based on a lot of suggestions (thanks, everyone!) I'm getting some GMD prefolds and workhorses to fill out my nb stash. I'm not due for another couple of weeks, so who knows how big it will be, but my first was 9 pounds. Does it make sense to get newborn size, knowing that this one could be that big, too, or go straight to size small? Does it make sense to get some of each, or are they big enough for one-size pockets when they outgrow the nb size? I currently have a toddler in one size pockets, so if I do more laundry we could probably get by with what we have once the new one is big enough for them. I'm not completely in love with what we're using for him, though, so I wouldn't be opposed to trying something different.
Thank you!
Re: sizes for large newborns?
Edited to add that at 8 weeks and 13 pounds I can still snappi a small prefold on her.
Really, you could just do the best of both worlds and get flats.