Kate Middleton Twins On The Way? Experts Ponder The Pregnancy Possibilities

12/04/2012 06:05 pm ET | Updated Dec 05, 2012

Medical experts are buzzing that Kate Middelton's hospitalization with hyperemesis gravidarum, a violent version of morning sickness, could be a sign that the world's most famous mom and dad to be could be expecting twins.

Dr. Ashley Roman, of New York University Langone Medical Center, told ABC Nightline that women carrying twins had a 7.5 percent higher risk of experiencing hyperemesis gravidarum. If that's the case, which of the children would be the future heir? "The question of twins is an interesting one when you are talking about Royal succession. It has never arose [sic] before,” one constitution expert tells The Huffington Post. “The first twin born would be the heir no matter if it were a boy or girl given the new rules -- until now it was always the first boy that was first in line." Or, as royalty expert and ABC contributor Victoria Arbiter told E! News, "All it really means in one fail [sic] swoop we would have provided the nation with an heir and a spare. So job done really!"

But our royal source raises another important point: "What would be very interesting is if Kate had a caesarean section. Talk about pressure on the doctor -- he or she would effectively to selecting the future Monarch. Can you image if Kate was carrying a boy and a girl and had a c-section? The conspiracy theories would begin.”

And we already know there are plenty of those.

While you ponder the twins situation (we can't stop imagining it: matching baby tiaras, two pairs of little L.K. Bennett shoes...), check out the latest on Kate's situation in our live blog (below the photos).

More royal babies!

Royal Children! (In No Particular Order)

12/06/2012 11:03 AM EST

Prince Charles: "I'm thrilled."

When asked about his daughter-in-law's pregnancy, Prince Charles told reporters, "It's a very nice thought to become a grandfather in my old age, if I can say so... I'm thrilled, marvelous."

He also jokingly alluded to Wednesday's hoax, when two Australian radio hosts prank-called Kate's hospital pretending to be the Prince of Wales and Duchess of Cornwall. When approached by reporters today, he replied, "How do you know I'm not on a radio station?"

12/06/2012 10:59 AM EST

Kate Leaves The Hospital After 3-Day Stay

The Duchess of Cambridge was discharged from King Edward VII Hospital on Thursday after a 3-day stay. Facing the press as she exited the building with Prince William, she said, "I'm feeling much better, thank you."

12/05/2012 4:29 PM EST

What Kate Middleton Lost When Her Pregnancy Was Announced

@ ariannahuff :

.@lisabelkin: "What Kate Middleton lost when her pregnancy was


12/05/2012 4:20 PM EST

Where Will The Young Cambridge Family Live?

Prince William and Kate Middleton's plan to move into Kensington Palace has now been pushed to October 2013 due to asbestos. According to The Daily Mail, the "couple will be shuttling between rented farmhouse on Anglesey in North Wales and Nottingham Cottage in grounds of Kensington Palace."

12/05/2012 12:23 PM EST

Church Of England Publishes New Prayer For Duke & Chuchess Of Cambridge Today

According to The Telegraph, it says: "God our creator, we thank you for the wonder of new life and for the mystery of human love. We pray for William, Duke of Cambridge and Catherine, Duchess of Cambridge as they prepare to receive the gift of their child. We thank you that we are known to you by name and loved by you from all eternity, through Jesus Christ our Lord. Amen."

12/05/2012 12:03 PM EST

Pippa & James Middleton Have Left The Building

@ SkyNewsRoyal :

#Royal #Pippa and #James Middleton have just departed the hospital where #Kate is, having stayed for approx 2hrs

12/05/2012 11:07 AM EST

Pippa & James Middleton VIsit Kate In The Hospital

@ britishroyals :

Pippa & James Middleton are in the hospital to see Kate. Lovely! # royalbaby

12/05/2012 10:34 AM EST

Prince William Visits Kate Middleton In The Hospital For Third Day In A Row

Prince William smiles as he enters King Edward VII Private Hospital to visit his pregnant wife on Dec. 5 in London.

12/05/2012 9:12 AM EST

Kate Middleton's Nurse Fooled Into Revealing Private Details

Just one day after Kate Middleton arrived at King Edward VII Hospital in London, two radio hosts from 2Day FM, a Sydney-based station, decided to play a little prank and ring up the hospital pretending to be Queen Elizabeth II and Prince Charles. And it actually worked -- their call went through a receptionist before they were transferred to the Duchess of Cambridge's nurse.

Here's what happened.

12/05/2012 9:10 AM EST

Katrina Darling, Kate Middleton's Burlesque Dancer Cousin, Congratulates Her on First Pregnancy

UsWeekly reports: "I was so pleased to hear the good news and wish mother and baby every health and happiness," Playboy's September 2012 cover girl said of her expecting relative who she has never met.

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