Jenna Wolfe revealed this morning she is engaged and expecting a baby with Stephanie Gosk, an NBC News correspondent.

Today show correspondent said: “I have some big news, I’m actually pregnant, quite pregnant. Stephanie and I are expecting a baby girl at the end of August. This is the adventure of a lifetime.”

She added: “This is a journey that I am very excited to take.”

This is the first time Jenna Wolfe, 39, has spoken publicly about her relationship with Stephanie Gosk, 40.

The full story of the engagement and pregnancy appears in People magazine this week.

Jenna Wolfe revealed this morning she is engaged and expecting a baby with Stephanie Gosk, an NBC News correspondent

Jenna Wolfe will also be blogging about her adventures throughout the final stages of her pregnancy.

In the first installment, Jenna Wolfe revealed that it was the biggest news she ever had to tell her family.

“Of all the jaw-dropping, head-turning and eye-popping things I’ve ever told my friends and family (“I swam with killer sharks”, “I jet-packed 30-feet out of the water”, “I scaled the tallest building in Canada”), nothing garnered more shock and awe than when I told people I was pregnant.”

Talking about her partner, Jenna Wolfe said: “Stephanie, a foreign correspondent here at NBC, spent years in war-torn countries, risking life and limb in the most dangerous places on earth to tell amazing stories.

“Ever since I can remember, I’ve been a thrill-seeking, dare deviling, adventure-hopping, fearless chick who enjoys the rush of life.

“Between the two of us, we’ve seen and we’ve done more than most will in a lifetime. And yet both of us agree that THIS little girl will be the biggest and best adventure of our lives.”

Jenna Wolfe and Stephanie Gosk have been dating for almost three years and decided they wanted a “wide-eyed, little person” to share their adventures.

So they embarked on “Operation Baby” in December, which she says was “the best decision of her life”, despite the morning sickness.

“Last week I didn’t get out to the plaza on time because I got sick right before I came outside,” Jenna Wolfe revealed.

Stephanie Gosk, who was based in London until she moved in with Jenna Wolfe in New York last fall, said: “The beauty is that we live in a time where there’s no need for secrecy. It’s a very comfortable, open time. And this is a spectacular moment for us.”

Jenna Wolfe and Stephanie Gosk had been dating long-distance for a large part of their relationship but it was not until they were both living in the same city – and the same apartment – that they decided to bring up a child.

Stephanie Gosk told People: “For a long time I had feared I would never have a child. Now I can think of nothing greater than having my daughter get Jenna’s spirit and energy.

“I’m excited to be a mom, but I didn’t have the same level of excitement about being pregnant.”

Jenna Wolfe became pregnant through artificial insemination by an anonymous sperm donor as the couple didn’t want a “third parent”.

With the baby due in August 27, Jenna Wolfe and Stephanie Gosk have no plans to get married yet, saying: “With everything we’re doing, we haven’t set a date yet.”