It’s the kind of one-in-a-million occurrence you couldn’t plan if you tried.

Three generations of one family – grandma Leanne Wilson, her daughter Kelly, and Kelly’s daughter Scarlett Szkudlarski – all share the same birthday.

Little Scarlett came into the world on March 31 this year following a speedy labour at Werribee Mercy Hospital. Her mum Kelly, was born on March 31, 1988, and grandma Leanne, on March 31, 1963. All three were delivered naturally.

Kelly said when she found out that Scarlett’s due date was March 30 – only one day off her and her mum’s birthday – she had her fingers crossed for the birthday trifecta.

“We were excited the whole pregnancy, but I didn’t want to get too wrapped up in it, and put too much pressure on myself,” the Wyndham Vale resident said.

“On my birthday, me and [two-year-old son] Hunter had breakfast, sat down to open up a present, and afterwards, as I stood up, my water started to trickle.

“That was 8.10am … and she was born at 11.53am.

“It’s beautiful, because she’s my first daughter, and I’m my mum’s first daughter.”

Leanne added: “I was there for the actual birth, which was fantastic.

“It was meant to be.”

Kelly and Leanne are looking forward to future birthday celebrations as a threesome, and have already worked out that when Scarlett turns 21, Kelly will be celebrating her 50th birthday, and Leanne her 75th.