'It's aaaaaaa.....' Teen Mom 2 star Chelsea Houska and new husband Cole DeBoer reveal the sex of their unborn baby

We have seen the baby's face in utero and now this MTV star is letting her fans in on the secret - is it a boy or a girl?

Teen Mom 2 star Chelsea Houska revealed the gender of her still-to-be born baby on Instagram on Sunday.

It will be the 25-year-old star's second child and her first with her husband of just over a month, Cole DeBoer.

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The big reveal: Teen Mom 2 star Chelsea Houska and Cole DeBoer revealed they are expecting a boy on Sunday

Posting a picture of herself - with daughter Aubree clinging to her - and her husband holding a string with little boy's clothing attached, the MTV star announced she was having a boy.

 Chelsea wrote: 'It's aaaaaaa..... BOY! Can't wait to add a little man to our crazy crew!'

Her husband  shared another snap from the gender reveal party saying: 'Introducing the most amazing man on the planet... our little sweetie.'

Cole is obviously excited to teach his son how to hunt with another picture showing some bows and arrows and stuffed deer. 

Chelsea and Cole tied the knot in a quiet country wedding on October 1.

Just a few days later they a shared a sonogram of their little boy.

'That FACE... does baby look like mommy or daddy?!' the MTV reality star wrote alongside the 3D image with three heart eye emojis.

Chelsea shares seven-year-old daughter Aubree from a previous relationship with Adam Lind.

My heart ❤️❤️❤️ is so full �� ���� @chelseahouska Photo cred: @jakephotographysf

A photo posted by Cole DeBoer (@coledeboer) on

Lind was present at her wedding last month in a rare show of solidarity for stars of the MTV show. 

The wedding was a small intimate one as the baby complicated the couple's wedding plans. 

'Next year, once our sweet little baby can be a part of it, we will have our big wedding ceremony/reception and that whole shebang,' the mom-to-be told MTV News

'That FACE!': Last month the Teen Mom 2 star shared a sonogram photo on Instagram

Country wedding: The 28-year-old reality star and fiancé Cole DeBoer tied the knot October 1

'I want to thank everyone for the well wishes, and I'm excited for my next chapter in life as a wife!'

The beautician met the fitness enthusiast at a gas station and they began dating in August 2014. 

They got engaged in November 2015.

Growing family: Chelsea is already mother to seven-year-old daughter Aubree from a previous relationship 

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