A lucky (and probably exhausted) first-time mum from the USA has given birth to a hefty 13lb 10oz (6.2kg) baby, prompting the hospital to say it may be the biggest newborn they've ever seen.
Michelle and Brad Hall told CBS News their friends and family would always wonder if they were having twins because of Michelle's big baby bump - but on the day of delivery, she only had one child - a really big one.
Little baby Isaac is 25 inches tall already, despite only being born a few days ago.
Luckily for Michelle, the baby was delivered by C-section at West Penn Hospital.
"We knew the baby was going to be very large. As large as this? No. But at the same time, too large to deliver any other way," Dr Andrew Sword said.
"We have never seen a baby of this size," he added. "And when I polled all the pediatricians from this hospital, some of whom date back to the early 1980s, there's never been a baby on record who's this size."
"I would say we were nine months pregnant for three months," Michelle told the Pittsburgh Post-Gazette.
Isaac is around five pounds heavier than your average newborn baby, and about seven inches longer.
He may be the biggest they've seen in that hospital, but not the biggest the world has seen. In 1879, a Canadian woman gave birth to a boy in Ohio, USA, weighing in at 22lbs (10kg). The mother was a Giantess called Anna Bates, and she holds the Guinness World Record for largest baby born.
Meanwhile, the UK's biggest baby, now two-years-old, was a whopping 15lb 7oz (7kg) at birth - and he was born naturally.
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