Heidi Montag has hinted she's gone into labour.

Spencer Pratt and Heidi Montag

Spencer Pratt and Heidi Montag

The former 'Hills' star isn't due to give birth for another four weeks but it looks like her little bundle of joy - believed to be a boy - has decided to make an early appearance as she has sparked speculation that her waters have broken with a cryptic post online.

Taking to her Twitter account on Thursday (14.09.17) night, the 31-year-old blonde beauty said: "Well... looks like this baby will be coming early (sic)."

Heidi's worrying tweet comes less than a week after she and her husband Spencer Pratt celebrated their pregnancy with a miracle-themed baby shower.

Speaking to Us Magazine during the lavish bash, held in Los Angeles, Heidi said: "It's a miracle we're even having a kid. We've been praying for this baby for years."

The 31-year-old star recently said her spouse, 34, was keen for her to have "crystals" in her birthing room because they "represent spiritual protection, health and a higher realm of love" but, with her baby seemingly making an early appearance, it's probably unlikely that their couple - who got married in 2009 - have had time to organise that.

Meanwhile, Heidi has made no secret of the fact that she's wanted a family of her own but work commitments have forced the pair to put their baby plans on hold until now.

Heidi said: "It might never be the perfect time, so we said, Let's move forward. We had all these conversations. We're older, we have more life experience. Nothing is holding us back. I wanted a baby three years ago. Spencer was a little hesitant.

"Then one thing after another came up. We had work obligations, like 'Celebrity Big Brother' in the UK, which I did not want to be pregnant for. I'm actually really thankful we waited. I thought I was ready in my twenties, but with everything we had going on, it just wouldn't have been a good situation for us.

"I have never been more excited. The reality is sinking in that we are going to have a child! I've read every pregnancy book, and now I see I don't know anything."

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