Heather Rae El Moussais excited to share her pregnancy news with the world.

“I’m so excited to announce it. I’ve been having to hide it at the gym and at events and going out places … walking red carpets,” Heather continues. “I’m used to wearing tight clothing, I’m used to wearing tiny clothing, and having to hide it, it’s just been very, very challenging.”

Now the mom-to-be is ready to dive into maternity fashion. “I can’t wait to start wearing my tight dresses, my cute maternity stuff and show it off rather than hiding it,” she says. “I’m so excited!”

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Christina Cernik

Tarek and Heather El Moussa

Heather and Tarek — who shares kidsTaylor, 11 and Brayden, 6,withex Christina Hall— were in the middle of in vitro fertilization treatments and had even scheduled a date to transfer an embryo next fall when they got the joyful surprise a few weeks ago.

Tarek and Heather El Moussa

“It was a huge shock,” says Heather of the pregnancy. “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.”

Tarek and Heather El Moussa

And the unexpected timing couldn’t be better.

source: people.com