Well, Day 27 now and I can't say her nipples have exploded into obviousness.... They are kinda pointy/erect-ish(!), they spring back up when you stroke her(!). But I'm not throwing a party with my definite certainty, here.
I only saw discharge that once, on Day 21, and not since. But I've seen her licking herself down there quite a bit more than usual, so maybe she is cleaning it.
I have in my notes that I should see 'definite enlargement' by 5.5 weeks. Which is a week on Friday. Is it really all going to happen that quickly and become obvious so fast?