Police have now confirmed the body found at a rural property in South Auckland this week is that of Rae Portman.
Detective Inspector Mark Gutry says the confirmation follows an autopsy.
The body was found at a house in Ardmore, where detectives were following up information from the public.
"We've completed our scene examination, and we've also completed the post-mortem. We can now confirm that the body that we discovered is that of Rae Portman."
They found personal items belonging to the 33-year-old, including clothes.
A 32-year-old Hamilton man has appeared in court accused of kidnapping her.
Police are sill looking for information about the movements of two vehicles, as they continue investigating the killing of pregnant woman Rae Portman.
Investigation head Detective Inspector Mark Gutry is still looking for information a yellow Commodore ute with the registration "LCKDUP" in June.
"We believe that that vehicle, and a black Astina, that belonged to Rae Portman, travelled to Hamilton and back throughout the night of the 20th - 21st. Information around that would be very helpful to us."
Anyone with information should call 0800 RAE PORTMAN.