01of 28

The couple were in the middle of in vitro fertilization treatments and had even scheduled a date to transfer an embryo next fall when they got a happy surprise a few weeks prior.

“It was a huge shock,” said Heather. “We just weren’t expecting this. We had just gone through IVF. We had embryos on ice. We had a plan.” But after the disbelief wore off, theSelling Sunsetstar was elated. “I think when you least expect it and there’s no stress in your life, the world just brought us what was meant to be. I’m so excited that it happened like this.”

02of 28Heather Rae El Moussa/InstagramIn a July 26 Instagram Story, Heather cradled her bump in a form-fitting green dress.

02of 28

Heather Rae El Moussa/Instagram

heather rae el moussa

In a July 26 Instagram Story, Heather cradled her bump in a form-fitting green dress.

03of 28

heather rae el moussa

04of 28

05of 28

06of 28Everyone got in on the party popping action, including Tarek’s kids from his first marriage to Christina Hall, son Brayden and daughter Taylor.

06of 28

Everyone got in on the party popping action, including Tarek’s kids from his first marriage to Christina Hall, son Brayden and daughter Taylor.

07of 28Heather’sSelling Sunsetcostars got to see her bump for the first time while out to brunch in mid July.

07of 28

Heather’sSelling Sunsetcostars got to see her bump for the first time while out to brunch in mid July.

08of 28

09of 28The couple’s pregnancy reveal included gorgeous photos shot on the beach.

09of 28

The couple’s pregnancy reveal included gorgeous photos shot on the beach.

10of 28

11of 28Christina Cernik"When we first started dating three years ago, we went into our relationship not planning on having children together. I really love being a bonus mom to Taylor and Brayden. They’re such incredible kids and I love them so much," Heather told PEOPLE. “But as your love grows more and more and you fall deeper in love with someone and you build this life together, I started picturing myself having a child with Tarek. I started thinking I just wanted to create something with the man that I’m in love with.”

11of 28

Christina Cernik

Tarek and Heather El Moussa

“When we first started dating three years ago, we went into our relationship not planning on having children together. I really love being a bonus mom to Taylor and Brayden. They’re such incredible kids and I love them so much,” Heather told PEOPLE. “But as your love grows more and more and you fall deeper in love with someone and you build this life together, I started picturing myself having a child with Tarek. I started thinking I just wanted to create something with the man that I’m in love with.”

12of 28

Tarek and Heather El Moussa

13of 28

Tarek and Heather El Moussa

14of 28

15of 28Christina Cernik"I’m just obsessed with my kids. They’re my everything, so having another one is just icing on the cake. I’m so excited," Tarek told PEOPLE.

15of 28

Tarek and Heather El Moussa

“I’m just obsessed with my kids. They’re my everything, so having another one is just icing on the cake. I’m so excited,” Tarek told PEOPLE.

16of 28In another post, Tarek wrote he was feeling “so blessed” about the couple’s growing family.

16of 28

In another post, Tarek wrote he was feeling “so blessed” about the couple’s growing family.

17of 28He added alongside this snap, “I am truly the luckiest man on earth.”

17of 28

He added alongside this snap, “I am truly the luckiest man on earth.”

18of 28In late July, the mom-to-be posted a pic of her bump at work.

18of 28

In late July, the mom-to-be posted a pic of her bump at work.

19of 28

TherealSPW

Heather Rae El Moussa

20of 28Tarek helped Heather keep her cool while on a set in early August.

20of 28

Tarek helped Heather keep her cool while on a set in early August.

21of 28

Heather Rae El Moussa Instagram

Heather and Tarek reuniting

22of 28"Embracing maternity fashion like it’s my job," Heather wrote on Aug. 15.

22of 28

“Embracing maternity fashion like it’s my job,” Heather wrote on Aug. 15.

23of 28Tarek (R) and Heather Rae El Moussa.Tarek El Moussa/instagram"In awe of how amazing Heather has been doing throughout her pregnancy- still coming to work, still working out, and still being an incredible step mom to Tay and Bray,“Tarek wrote on Aug. 15.

23of 28

Tarek (R) and Heather Rae El Moussa.Tarek El Moussa/instagram

Tarek El Moussa Says He Is ‘in Awe of How Amazing’ His Wife Heather Is Doing During Pregnancy https://www.instagram.com/p/ChTQiC4pVHU/

“In awe of how amazing Heather has been doing throughout her pregnancy- still coming to work, still working out, and still being an incredible step mom to Tay and Bray,“Tarek wrote on Aug. 15.

24of 28The mom-to-be grabbed lunch (and advice!) from some friends in mid August.

24of 28

The mom-to-be grabbed lunch (and advice!) from some friends in mid August.

25of 28

26of 28The Image DirectThe realtor kept it cool in a two-piece while headed to a workout class in August.

26of 28

The Image Direct

Heather El Moussa

The realtor kept it cool in a two-piece while headed to a workout class in August.

27of 28RMLA/BACKGRIDPretty in pink! Heather kept her signature style while filmingSelling Sunsetin late August.

27of 28

RMLA/BACKGRID

Pregnant Heather Rae El Moussa Rocks in Pink while filming “Selling Sunset” at Sunset Plaza in West Hollywood

Pretty in pink! Heather kept her signature style while filmingSelling Sunsetin late August.

28of 28In another sweet tribute to his wife, Tarek wrote, “Love this woman more than the world and love our little boy already so much ❤️❤️❤️ Can’t wait for our next chapter together but for now it’s daily stomach kisses and putting my head to her belly.”

28of 28

In another sweet tribute to his wife, Tarek wrote, “Love this woman more than the world and love our little boy already so much ❤️❤️❤️ Can’t wait for our next chapter together but for now it’s daily stomach kisses and putting my head to her belly.”

source: people.com