Home and Away's Pia Miller has shared a touching photo of herself as a teen mum.

Home and Away’s Pia Miller has shared a tender throwback snap of herself as a teenage mum.

The 32-year-old Aussie actress gave birth to her first child, Isaiah, when she was just 19.

At the time, she was working as a model – and judging by that photo, she’s barely changed in 13 years.

She shared the photo on Instagram to celebrate Isaiah’s 13th birthday over the weekend. It was accompanied by the caption: “13 years ago. Baby me with baby Izzy.”

13 years ago. Baby me with baby izzy ??

A photo posted by Pia Loyola (@piamiller) on Mar 4, 2016 at 5:47pm PST

The photo has already attracted more than 7,000 likes and dozens of comments of support from fans and followers, with justwatchme_15 posting “Omg she doesn’t look one minute older” and paige_alice sharing “So beautiful! What a precious memory”.

Chilean-born Miller, who has played as Katarina Chapman on the soap since 2014, also welcomed a second son, Lennox, with AFL star husband Brad Miller in 2006. Sadly in October last year, the couple announced that their marriage was over, releasing a statement which read: “After several months of reflection we have decided to separate.” She has since found love again with model Cheyenne Tozzi’s ex partner Tyson Mullane.

Cheeky Friday bathroom selfie ? this dress though @biancaspender ?? thank you @qatarairways for an amazing night x A photo posted by Pia Loyola (@piamiller) on Mar 3, 2016 at 4:45pm PST

Happy birthday, Isaiah – and thanks for sharing such a gorgeous picture, Pia.

How old were you when you had your first child?

TAP on the image below and scroll through the gallery to see more photos of Pia Miller…