Doctor Finds Second Baby In Ultrasound, Mom Is Confused When Told It's Not A Twin

parenting by Cailyn Finkel 3/15/2017

Although 10-month-old sisters Charlotte and Olivia Hill may look like identical twins, that's far from the case. They're actually something much more rare and fascinating - something that's only been documented ten times in history before their arrival!

Their conception shocked their parents Kate and Peter, and has the medical field talking!


Screenshot via Facebook

Kate and Peter always knew they wanted a family, but unfortunately Kate suffered from polycystic ovary syndrome - a condition that can make it difficult to conceive a child without fertility treatments. 

Knowing this, Kate began taking hormone supplements and they started trying for a baby right away!

Sure enough, Kate became pregnant with twins shortly after taking the hormones! Unfortunately, one of the twins passed just days into conception, but when Kate went back for a checkup to see how the other embryo was doing, the doctor saw something strange.

A new baby seemed to take the place of the original twin that passed away!

Since she was undergoing fertilization treatment, her doctor, Dr. Brad Armstrong of Greenslopes Private Hospital, was able to pinpoint the new embryo's exact age. He discovered that Kate's "new" baby was 10 days younger than the other child growing inside of her.

Dr. Armstrong was shocked and didn't know what he was looking at, so he started to scour medical journals and publication - but no matter how deep he looked, there was nothing similar in any document.

That's when he turned to Google and found something shocking. Dr. Armstrong revealed that Kate had a pregnancy known as superfetation.

Kate shared what the doctor told her about her pregnancy with SELF Magazine:

"Superfetation is extremely rare-I had fallen pregnant and my body had spontaneously released another egg, giving the embryos different gestational ages.

What makes this case even more rare is that my husband and I only had relations one time [in the possible time period of conceiving the girls]-his sperm stayed alive for 10 days to fertilize the second egg released."

Normally sperm last no longer than five days searching for an egg to fertilize, but not this time!


Screenshot via Facebook

Little Charlotte and Olivia grew within Kate free of any major complications and were delivered on the same day, healthy as can be! Now the Hills have a bustling home and the children they've always wanted!

The investigation behind their rare birth is far from over - doctors around the world are fascinated by the girls!

Jason James, M.D., the medical director at Miami's FemCare Ob-Gyn, told SELF Magazine that diagnosing superfetation is almost unheard of in the medical field:

"Superfetation is so rare that there are only a handful of documented cases. Most doctors believe alleged reports [of superfetation] are primarily due to markedly unequal growth and development of twin fetuses of the same gestational age."

But there's no chance Charlotte and Olivia are twins! They are the world's most recent case of a superfetation - and that's even more special!


Screenshot via Facebook

Learn more about Kate's pregnancies in this fascinating video!

What do you think about this remarkable pregnancy? Share your thoughts and feelings in the Facebook comments section!

Sources: Facebook/Today Tonight Adelaide, SELF Magazine, ABC News / FB Image Credit: Screenshot via Facebook

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