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

What would happen if Kate gives birth to "an heir and a spare."

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!

Prince William, 1983

Royal Children! (In No Particular Order)

Want more? Be sure to check out HuffPost Style on Twitter, Facebook, Tumblr, Pinterest and Instagram at @HuffPostStyle.
Do you have a style story idea or tip? Email us at stylesubmissions@huffingtonpost.com. (PR pitches sent to this address will be ignored.)

Before You Go