I am 17 weeks thankfully I have managed to stay in same bra for now, but had to buy a extender as I am now with extender clipping them up 2 inches wider *shaking head*

mind you the cups do fit a lot better

Emma check out blestbras.com.au i think thats the link otherwise search for blest bras they are a online company i beleive they sellto NZ too, and they have nice bras reasonable prices and great sizes