Megan Gale and her partner Shaun Hampson have welcomed the birth of their son.

Megan Gale and her partner Shaun Hampson have welcomed the birth of their son. Photo: Getty

Megan Gale has revealed the name of her newborn son.

Alongside a gorgeous Instagram picture, posted last night, she wrote:

"We finally chose a name for our little man - River Alan Thomas Hampson. Rivers [sic] is my Mums maiden name, Alan after my Dad, Thomas for Shaun's Dad and the last name just like his Daddy's."

River Hampson.

River Hampson.

Gale also used social media to announce the birth yesterday.

She posted a picture to Instagram with the caption saying:

"Our precious little 3.87kg (8.5 pound) man came into the world yesterday the 13th of May 2014 at 4.47pm.

Megan Gale announced the arrival of her son on Instagram. Her unnamed baby was born yesterday afternoon.

Megan Gale announced the arrival of her son on Instagram. Her unnamed baby was born yesterday afternoon. Photo: Megan Gale/Instagram

"Needless to say Shaun and I are completely smitten with him and we're beyond blessed to have such a healthy baby.

"Still deciding on a name so watch this space. Words can't even come close to describing how we're feeling right now and more so, how it felt to see, hear, hold and meet this beautiful soul for the first time. We love you little man and are SO thrilled to be your parents."

It is the first child for the 38-year-old model and her partner, AFL player Shaun Hampson, 26.

Gale made sure she was well prepared for the arrival of her baby, posting this photo of the baby's room three weeks ago.

Gale made sure she was well prepared for the arrival of her baby, posting this photo of the baby's room three weeks ago. Photo: Megan Gale/Instagram

Gale, who has been dating Hampson since January 2011, has used Instagram to express her excitement in the lead up to the birth.

Several weeks ago, she posted a picture of a nappy change table, with the caption:

"Ready to change that first nappy at home! #bringiton."

Megan Gale said she was initially nervous about posing nude for the May cover of Marie Claire.

Megan Gale said she was initially nervous about posing nude for the May cover of Marie Claire. Photo: Megan Gale/Instagram

Gale also posed nude while she was 30 weeks pregnant, for the cover of Marie Claire magazine.

Again using Instagram, she shared a picture of the cover.

She wrote: "A sneak peek at my cover shoot for @marieclaireau which comes out tomorrow.. It was quite a daunting experience posing for a magazine without a stitch on, a concept not new to me, but something I haven't done for many years- and obviously never done at 30 weeks pregnant..  All in all, it was quite a liberating thing to do and I'm glad I did it - and such a lovely momento to have..."

Despite the stunning cover, in her interview with Marie Claire at the time, Gale admitted to feeling ambivalent about her changing body.

"Look, when you’re pregnant, it’s hard," she said. "I would be a liar if I didn’t say there weren’t moments where you are looking at your butt going, “Wow! That’s quite the booty I’m getting there,” and there is not much you can do about it.

"Pregnancy does transform your body in some incredible ways that you might like and some that are not ideal. It’s easier said than done, but you have to let the ego go, let the vanity go."

The model used to date radio and TV star Andy Lee, whose partner in crime, Hamish Blake welcomed his first bub, with wife Zoe Forster-Blake on the weekend. They also announced the birth of baby boy, Sonny, via Instagram.

Fairfax Media