Mum’s kids weighed 10 pounds each at birth, but you’ll NEVER guess what happened with her fourth

When Chrissy Corbitt was due to give birth she was expecting a big baby to arrive.

In her past three pregnancies her children had all weighed in or around 10 pounds and she had assumed her fourth would be much of the same.

But this time around Chrissy wasn’t as prepared as she had initially thought.

During her C-section the mum-of-three could hear doctors laughing as they pulled her baby girl out and they began throwing numbers around at each other.

Baby Carleigh Brooke Corbitt had arrived into the world, all 13.5 pounds of her.

Yep, Chrissy's baby was 13.5 pounds, with the mum and her husband having to return clothes for a newborn in exchange for nine-moth-old clothing.

While the obstetrician believes Carleigh is the biggest baby he has ever delivered, the now mum-of-four told Inside Edition: "I can't get enough of her."

The new arrival has shocked many as they find it hard to believe Carleigh is just a newborn. 

Taking part in a photoshoot with Sweet Smiles Photography, you can see why the adorable newborn is mistaken for a baby who is a couple of months old. 

And to her mum for carrying 13.5 pounds around for so long – we applaud you!