Nikki and Brie Bella compare pregnant bellies as the twins continue their journey as expectant moms

They are twin sisters who dominated the wrestling world together, and now they’re sharing another major life moment at the same time: pregnancy.

Nikki and Brie Bella, former pro wrestlers and stars of the hit reality shows Total Bellas and Total Divas, took to Instagram again on Monday morning to announce the progress in their concurrent pregnancies — and even compare belly sizes.

First, the 36-year-old sisters, due within two weeks of one another, both posted snaps to their respective feeds on Monday morning in profile shots in black.

Doing it together: Nikki and Brie Bella took to Instagram again on Monday morning to announce the progress in their concurrent pregnancies — and even compare belly sizes

Nikki posted three shots in a floor-length black outfit standing in her home, cradling her belly.

Brie posted a shot in a tighter LBD that showcased her amazing curves, as the turned to face the camera with a glowing smile.

‘#18weekspregnant Feeling great and loving apples!!’ Brie captioned the snap.

And on her IG Story, she uploaded a fun video snippet in which she compared the size of her baby bump to that of her twin sis.  

Side by side: And on her IG Story, Brie uploaded a fun video snippet in which she compared the size of her baby bump to that of her twin sis

Side by side: And on her IG Story, Brie uploaded a fun video snippet in which she compared the size of her baby bump to that of her twin sis

Nikki: On Monday morning, the 36-year-old sisters — due within 2 weeks of one another — both posted snaps to their respective feeds in profile shots in black

Brie: On Monday morning, the 36-year-old sisters — due within 2 weeks of one another — both posted snaps to their respective feeds in profile shots in black

Super similar: On Monday morning, the 36-year-old sisters — due within 2 weeks of one another — both posted snaps to their respective feeds in profile shots in black

‘Today I am 18 weeks!’ Brie announced as she panned her phone’s camera down to show her tummy, clothed in a sleeveless black dress with cinching on the sides. ‘Look at this bump!’

Then, she turned to her sister Nikki, and asked how far along she was.

‘I’m sixteen and a half!’ she replied, wearing a form-fitting black sleeveless jumpsuit and a bum bag fastened just under her growing belly.

‘Let’s compare bumps,’ Brie then said, as her sister sidled up next to her. 

'Let's compare bumps,' Brie said to her sister in her IG Story

‘Let’s compare bumps,’ Brie said to her sister in her IG Story

As they peered at themselves with their bellies side by side, Brie remarked that ‘mine is so much bigger than yours.’

‘Well, it’s not a competition!’ Nikki retorted. 

The pair then also posed in a different angle, facing each other. 

It was at that point when Nikki momentarily cradled her bosom, saying, ‘My bump is about to beat my boobies.’

Brie responded, ‘Well, that’s good for you.’ 

Having fun: 'It's not a competition!' Nikki said to her sister playfully

Having fun: ‘It’s not a competition!’ Nikki said to her sister playfully 

At one point Nikki momentarily cradled her bosom, saying: 'My bump is about to beat my boobies'

At one point Nikki momentarily cradled her bosom, saying: ‘My bump is about to beat my boobies’

Over the weekend, Nikki also took a selfie video posted to her Insta Story, remarking how quickly her body is changing.

‘I can’t believe I fit into this dress; this was a struggle right now,’ the former WWE star said as she panned her phone camera up and down to show her bump in a different high-necked sleeveless black number. ‘But I did, even though my boobs are so big it’s causing big gaps. 

‘I feel like I’m gonna tear this dress but it looks good, right?’ she asked her 8.9m followers.

‘My bump has gotten so much bigger, literally, since Thursday. Look how cute,’ she concluded, displaying her bump once more. ‘All right, I’m going with it. I’m gonna do it.’

‘Getting ready because it’s gonna be Mama’s night out,’ she also said in the snippet on Sunday, which had the caption ‘Last night vibes’ written at the bottom.

And while their pregnancies are reason enough for the Bella twins to celebrate, last Friday brought more good news for the sibling pair — WWE announced that Nikki and Brie are set to be inducted into the World Wrestling Entertainment Hall of Fame as part of the Class of 2020.

Charting her progress: Brie finished off her Insta Story on Monday morning with another baby bump shot and the label '18 weeks pregnant!!!'

Charting her progress: Brie finished off her Insta Story on Monday morning with another baby bump shot and the label ’18 weeks pregnant!!!’

Pregnant vibes: Over the weekend, Nikki also took a selfie video posted to her Insta Story, remarking how quickly her body is changing

Pregnant vibes: Over the weekend, Nikki also took a selfie video posted to her Insta Story, remarking how quickly her body is changing

Pregnant vibes: Over the weekend, Nikki also took a selfie video posted to her Insta Story, remarking how quickly her body is changing

Not far behind her sister: Nikki's post from last Thursday

Not far behind her sister: Nikki’s post from last Thursday