First comes love, then comes marriage, then comes a baby in a baby carriage ... but not always in that order.
For Australian couple Aminah Hart and Scott Andersen, things happened in quite a different order, as the two met and fell in love after having a healthy baby girl named Leila, born on August 14, 2012.
Leila was conceived when her mother used in vitro fertilization (IVF) with an anonymous donor.
Aminah met that donor — Leila's biological father — for the first time almost a year later.
Having grown up without a father, Hart didn't want her daughter to experience that same void. So she reached out to Andersen via the fertility clinic, Metro reports.
In a radio interview with BBC News, Hart said she first sent Andersen an "email of thanks" with some photographs of Leila. Not knowing what Andersen looked like, Hart figured he shared Leila's blonde hair and blue eyes, as she did not.
They communicated solely through email for about six months before agreeing to meet in person in Melbourne, shortly after Leila's first birthday.
"I was nervous as hell going to Scott's to meet him for the first time," Hart told A Plus in an email. "But instantly he was warm and open, and as easy going as he'd stated of his personality in his donor profile."
As soon as she saw Andersen, Hart knew her hunch had been right. Leila was the spitting image of her biological father.
"Those two fell in love with each other, honestly," she told BBC News. "I don't know if it's because they're doppelgängers or what it was, but there was an instant love between father and daughter."
That one meeting would soon change the course of all three lives.
Hart and Andersen felt an "instant spark," which developed into a deep love over the next several months.
On December 2, 2015, they were married in a romantic, seaside ceremony.
Leila, now three years old, was the flower girl.
"Leila was initially uncertain as I don't think she knew what a wedding was, but once she was educated by her big sister Belle, she was delighted and thrilled to be a flower girl, feeling very important and getting to wear the the same dress as Belle whom she idolizes!" Hart told A Plus. "Now she constantly wants to look back at the wedding photos and video."
Hart has since chronicled their unexpected love story in a book titled How I Met Your Father. Jonathan Mildenhall, Airbnb's CMO, commented on an Instagram of the book, "Amazingly real. Now your story will create [a] legacy and go on to inspire millions."
This encouraging prophecy may prove true even sooner than Hart or Andersen could have anticipated. According to The Telegraph, a production company is planning to turn their heartwarming story into a film.