Bills family defy odds with all three born on January 11
Anna and Matt Bills will have no trouble remembering their son’s birthday.
The Mindarie couple, originally from England, defied the odds already by being born on the same day — January 11.
They were blown away when their son Max was born on exactly the same date this year.
“He came 13 days late so I was not expecting him to come on my birthday and I didn’t want to wait that long,” Ms Bills, 32, said.
“I went into labour on the ninth and had him at 2.15am on the 11th.”
Statistician Alethea Rea, of UWA’s Centre for Applied Statistics, said the chances of a family of three sharing a birthday was about eight in one million.
“That’s assuming babies are born uniformly across a year, but that’s an oversimplification as we know that babies are more likely to be born in summer,” she said.
The research fellow said the fact Max was born in summer could increase the probability of him having the same birthday as his parents, however Anna and Matt Bills being born in the northern hemisphere reduced the odds of the trio sharing a birthday.
“This means the eight in one million is probably about right,” she said.
Ms Bills said her and her husband’s lives were full of parallels.
“We lived about five minutes apart (near Liverpool, England) when we grew up and we met when he was 18 and I was 21,” she said.
The couple stayed in touch but went their separate ways until bumping into each other three times in the same week a few years later.
“I felt like the universe was bringing us together,” Ms Bills said.
They moved to Perth in 2013, where Ms Bills works as a real estate agent and her husband is a truck driver.
She said having the same birthday as her partner already meant a competition for the spotlight.
“It is weird having the same birthday because it is hard to spoil each other,” she said.
“Now it will be all about the baby in the morning and we will celebrate at night.”