Why are some babies overdue?

// World | Why are some babies overdue?
Email to a friend Plain text Print version // Font size: Decrease font Enlarge font

STORY HIGHLIGHTS

  • First born babies are less likely to arrive on time
  • Mothers may also be more likely to deliver late if overdue pregnancies run in the family
  • Excitement about the royal baby's arrival has been growing

(CNN) -- The world is eagerly waiting to hear news of the birth of the royal baby. A royal source told CNN that the due date was Saturday, July 13, which would mean that the Duchess of Cambridge is several days overdue.

Why is it taking the future prince or princess of Cambridge so long to arrive?

First-born babies are less likely to arrive on time -- they're either too early or too late, studies have found. A normal pregnancy lasts about 40 weeks, according to the American College of Obstetricians and Gynecologists. After 42 weeks, the pregnancy is considered to be post term. However, doctors usually induce labor before the pregnancy reaches this stage.

Royal babies: Five things you didn't know

Doctors predict the due date by noting the first day of the mother's last period, as well as measuring the size of her uterus early on in the pregnancy. However, differences in menstrual cycles and inaccuracies in remembering the actual date of the mother's last period make predicting a due date more of an art than a science.

"Often, there is a miscalculation of the due date in the first place," Dr. Neil Sloane, clinical director for obstetrics and gynecology at Delaware Valley Health in Philadelphia, noted. "And when we examine a supposedly overdue baby, they don't look like they're overdue."

Mothers may also be more likely to deliver late if overdue pregnancies run in the family. "Family history of overdue pregnancies is a stronger predictor than whether or not it is a first-time mother," said Dr. Daniela Carusi, director of general gynecology and surgical obstetrics at Brigham and Women's Hospital in Boston.

By the numbers: Royal births

"Will and Kate Plus One" sneak peek
Royal baby watch

She added that "People who have the most accurate due dates are those that have IVF, because they know exactly when the baby was conceived."

As pregnancies progress beyond the due date, both mother and baby could face health risks as the placenta ages and the amount of amniotic fluid decreases. Both of these events could possibly lead to the baby receiving less oxygen and nutrients.

Excitement about the baby's arrival has been growing ever since Kate was hospitalized for morning sickness, with royals and non-royals alike speculating on names and gender.

Royal baby birth: Everything you ever wanted to know

The waiting game continues as the world watches outside the gates of Buckingham Palace until royal officials announce the birth of the next heir to the throne.

SHARE THIS

ADVERTISEMENT

Part of complete coverage on

updated 12:57 PM EDT, Wed July 10, 2013

The Duchess of Cambridge is due to give birth to her first baby any day now, so what will happen once the baby arrives?

updated 4:22 PM EDT, Wed July 17, 2013

Think you know all you could ever want to about royal babies amid all the excitement about the new arrival? Well did you know this...

updated 5:42 AM EDT, Fri July 5, 2013

The royal family on the balcony at Buckingham Palace September 12, 1937 after the coronation of King George VI. King George VI (R) stands with Princess Elizabeth (C) and Princess Margaret.

Britain's royals are a pretty traditional bunch when it comes to picking baby names -- so what are the chances of a Queen Ella or King Terry?

Confused by who's linked to who in the royal family? Explore the Middleton and Windsor branches of our interactive family tree.

updated 5:32 AM EDT, Tue July 16, 2013

Whenever a new baby is on the way, everyone speculates on what the little one might look like. So will the royal tot take after mom or dad?

updated 12:04 PM EDT, Wed July 10, 2013

As the world awaits the arrival of the newest royal baby, here's a look at some interesting statistics about royal births in Britain.

updated 3:02 PM EDT, Fri July 5, 2013

Royal baby penny

There's a treat in store for anyone in Britain whose baby arrives on the same day Catherine delivers a royal heir -- the gift of a silver coin.

updated 10:56 AM EDT, Mon July 8, 2013

All eyes have been on the Duchess of Cambridge since she and Prince William announced they were expecting a baby.

updated 7:35 AM EDT, Wed July 3, 2013

Perhaps Henry VIII should have been watching what his many wives ate if he wanted to improve his odds of having sons.

updated 1:48 PM EDT, Thu July 4, 2013

The world watched when they were married in the wedding of the year -- now all eyes are on William and Kate ahead of their new arrival.

updated 9:58 AM EDT, Tue June 25, 2013

As well as being wonderful news for the royal couple the new baby will have positive implications for the future of the UK monarchy.

updated 2:11 PM EDT, Mon July 15, 2013

Prince William has spent decades in the public eye. Follow the royal's life in pictures, from baby to proud father-to-be.

updated 10:07 AM EDT, Tue June 25, 2013

Changes to the law mean Prince William and Catherine's new baby will be heir to the British throne, whether it is a boy or a girl.

updated 9:56 AM EDT, Tue June 25, 2013

Catherine has proved quite the fashionista since being catapulted into the limelight thanks to her appearance in a university catwalk show.

Get all the latest news, photos and videos on Kate and William's baby and the rest of the royal family.

ADVERTISEMENT
Tagged : No tags for this article

Headlines Newsview all

Ex-Lawmaker Jailed 7 Years Jail For Drug Trafficking

A former member of the Adamawa State House of Assembly, Missa Bobbo, and a notorious drug baron, Bappa Madu, of Ngurore town have been sentenced ... Full story

Notorious, Cold Hearted Kidnapper Kills 7 Including His GirlFriend In One Day

On Saturday, February 16, 2013, Henry Chibueze, a notorious kidnapper terrorizing South East and South South parts of the country, stormed the home of his ... Full story

We Live Like Rats, Yet Nigerians Citizens Want Us To Be Their Friends - Nigerian Policemen

He was drenched with sweat by the time he wriggled himself through the narrow entrance of his room into the passageway. Looking very depressed and ... Full story

Nollywood Actress, Gloria Young Causes Scene At Bank

Popular actress, Gloria Young, is currently not a happy customer. The iconic actress was recently spotted at a bank where she created a scene and ... Full story

Generator Repairer Stabbed To Death By Scavenger

A 19-year-old scrap metal scavenger, Mohammed Bello, is in custody of the Department of Criminal Investigation, Yaba, Lagos for allegedly stabbing a generator repairer, Taiwo ... Full story

MJ's Famous White Sequined Glove Sells At Auction For £41,000

A sequined glove worn by Michael Jackson has been sold at auction for a whopping $64,000. Bidding for the iconic fashion piece started at $20,000, around ... Full story

Nigerian Arrested In Iceland For Infecting Women With HIV

A Nigerian man who arrived Iceland last August, has been arrested for deliberately infecting women with the HIV. Police are currently investigating the case, particularly as ... Full story

Toke Makinwa Returns With Vlog Of The Week (Video)

What's the worst thing that can happen...you'll be single. Is singlehood so bad? Watch Rhythm FM OAP, Toke Makinwa's Vlog of the Week.  She has been ... Full story

Woman Who Accused Timaya Of Rape, Releases Evidence Of Police Report

The American lady who accused Timaya of rape, has finally released evidence of report filed against the singer.  Since the news of the alleged rape broke ... Full story

Blessing Samson, 20, Gives Birth To Baby Without Limbs In Bauchi

A baby boy without limbs has been born in Gudun Sayawa, a suburbs of Bauchi Metropolis, Bauchi State. The baby Christened Chongfilawos, was born without limbs ... Full story

Tipper Truck Crushed Okada Rider In Ketu (Very Graphic Image)

This happened on Aladelola Street, Ikosi Ketu, Lagos this morning. A tipper crushed an Okada rider. See the pics after the cut but please be warned...*it's ... Full story

Comment on: Why are some babies overdue?

Rate this article

0

Breaking News

My Wife Didn’t Like Our Son’s Music Career - Femi Falana

Music sensation, Falz, is enjoying every moment in the spotlight but before he got there, he had to cross some hurdles at home. Saturday Beats ...

Mum Always Warned Me About Women- Mike Godson

In a recent interview with The Entertainer, fast rising Nollywood actor, Mike Godson revealed one of his best kept advices from his mum. The Imo ...

Jim Iyke Set to Make Trouble in Lagos Over Debt

Nollywood actor, Jim Iyke, is not ready to take things likely with his debtors especially now that he needs money to pump into his water ...

See What Actress, Moji Olaiya Invested Several Millions on

Nollywood actress, Moji OLaiya, has joined the train of entertainers who are investing their money wisely to diversify into other businesses. Rather than remain dependent on ...

Alleged Timaya Rape Saga: Sheila B Gets Death Threat as She Reveals Police Report

May God help the situation of Nigerian singer, Timaya as his alleged rape saga continues to get messier as the day goes by without any ...

Omotola Jalade Causes Stare With Outfit (Photos)

Nollywood actress, Omotola Jalade, is really making a lot of men to salivate with her beauty which continues to radiate as the day goes by. The ...

Naira Has Recovered In Black Market, Checkout New Rate

Relief has come for individuals who are looking to change currency in the black market as the rate of naira to a dollar increased yesterday, ... Full story

Mario Balotelli's Liverpool Career Is Over

Mario Balotelli's career might be finally over at Anfield as he has been left out of trainings and tour.  Mario Balotellli's career in Liverpool may just ... Full story

Jay-Jay Okocha Returns To Football

Former captain of Nigeria’s Super Eagles, Austin ‘Jay Jay’ Okocha may be on his way back to English football. The former Botlon Wanderers skipper, who is ... Full story

Yemi Alade | Duro Timi VIDEO Premiere

2015 MTV Africa Music Awards “Best Female” award winner Yemi Alade premieres the music visual for “Duro Timi“; a Sizzle Pro produced emotive ballad sheltered on her acclaimed ...