Mum gives birth to NZ's first quadruplets in four years

Jonathan is the heaviest of the quads, weighing in at 1.647kg after being born premature at 31 weeks and one day. Photo: Supplied

Brett Wills had agreed to be a stay at home dad, but the "poor guy" wasn't bargaining on four at once.

Brett and wife Joanne Wills on Saturday became the proud parents of New Zealand's first set of quadruplets in four years.

Fraternal siblings Esther (1.024kg), Lucy (1.461kg), Jonathan (1.647kg) and Oliver (1.316kg) were born in that order at Wellington Regional Hospital over a 15-minute period from about 2pm.

The babies were premature, 31 weeks and one day to specific, and birthed via a planned caesarean section. There were no complications and the four are now being cared for on ventilators in the neonatal intensive care unit of the hospital.

Joanne says her first concern when she heard she was having quadruplets was that she'd have to think of four suitable names.

That, and Brett.

"The poor guy agreed to be a stay at home dad. He's been enjoying it, but then he's found out he's going to be having another four.

"He is coping amazingly."

Joanne works as a consultant at Australian software company TechnologyOne and is also a skipper for Hawke's Bay Coastguard.

The couple already have one child together, 20-month-old Peter, but Joanne said this pregnancy was on another level - as if it was her first pregnancy but "on steroids".

"Everything goes a lot faster. You've got to go into maternity leave a couple of months earlier, you just have to do your planning a lot earlier. We're very busy."

Napier mum Joanne Wills with her baby Oliver, one of four quadruplets. Photo: Supplied

Joanne said they found out they were having quadruplets about eight weeks into the pregnancy.

"We had a scan and suddenly that scan was a bit different," Joanne said.

"You're a bit shocked and trying to get your head around it. All I thought at first was how many names I'd have to come up with."

She said they had only finally settled on names for each of the quadruplets on the day after the births.

"We thought we knew what we were going for, but then you've got to meet your babies before you actually name them."

Joanne said she has held each of the four in her arms, but hasn't had a chance to bring them all together yet as they still required support through incubators.