Nikki Bella is almost halfway through her pregnancy!

The Total Bellas star gave fans an 18-week pregnancy update on her Instagram stories Wednesday morning and also shared some candid photos of her baby bump. The WWE star posed topless to show off her growing belly in two sexy selfies with a note about her changing body (and bosom!).

"It's crazy because a day after workouts abs really pop out in the morning," Nikki wrote. "But one thing I am dealing with is retaining a lot of water throughout the day. I will not look like this tonight. I can't believe how much I will retain in a day. Obviously boobs have gotten huge."

Nikki Bella

Instagram

Nikki added, "There is my love. 18 weeks tomorrow!" with a second topless baby bump snapshot.

The E! star shared several other stories about the effects of pregnancy on her body, including videos of blotches and "brown marks" on her face and lots of gray hairs coming in on her head.

Nikki and twin Brie Bella announced they are both expecting in January 2020. This will be the first child for Nikki and fiancé Artem Chigvintsev.

"I can't even begin to describe to all of you how happy I am! I'M GOING TO BE A MOM!! It's something I have wanted to be my whole life," Nikki wrote in IG at the time. "I was definitely shocked when I found out. And so nervous! I wasn't expecting it and felt I wasn't ready but this journey of life is unpredictable. I thank God every day and night for bringing this amazing blessing and miracle into my life! I am already SO IN LOVE!!"

Shortly after, Nikki shared her first sonogram.

Scroll down to see more of Nikki's beautiful pregnancy pics!

Nikki Bella

Stefan / BACKGRID

Nikki Bella, Artem Chigvintsev

Instagram

Nikki Bella, Brie Bella

Instagram

Nikki Bella, Artem Chigvintsev, PDA

Phamous / BACKGRID

Nikki Bella, Brie Bella

ROMA / MEGA TheMegaAgency.com

Nikki Bella, Brie Bella

Phamous / BACKGRID

Nikki Bella

BACKGRID

Nikki Bella, Instagram, Pregnant

Instagram

Nikki Bella, Instagram, Pregnant

Instagram

Nikki Bella, Baby Bump

Instagram

Nikki Bella, Brie Bella

PHAM, Dufffotos / BACKGRID

Nikki Bella, Artem Chigvintsev

Phamous / BACKGRID

Nikki Bella, Artem Chigvintsev, Drew Scott

Twitter

Nikki Bella, Brie Bella

Instagram

Nikki Bella

Instagram

Nikki Bella

Instagram

Nikki Bella

BG028/Bauer-Griffin/GC Images

Nikki Bella, Instagram, March 2020

Instagram

Nikki Bella, Instagram, March 2020

Instagram

Nikki Bella

ConejoMalo / BACKGRID

Nikki Bella, Artem Chigvintsev

Instagram

Nikki Bella, Artem Chigvintsev

Instagram

Nikki Bella, Instagram, Pregnancy, March 2020

Nikki Bella, Instagram, Pregnancy, March 2020

Nikki Bella, Instagram, Pregnancy, March 2020

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