Anna Guy is reportedly pregnant with her fifth child.
The sister of murdered Feilding farmer Scott Guy is expecting a child with her new partner, Brent Jameson, TVNZ reported.
Her father Bryan Guy said the family were delighted, and the pregnancy wasn't unexpected, TVNZ said.
Ms Guy, 32, has four children with her former husband, Ewan Macdonald, who was acquitted of Mr Guy's murder, but is serving a prison sentence for other offending.
She now lives in Auckland with her children and Mr Jameson.
