Harriette Denny Source: Supplied

The 30-year-old cafe worker was one of 18 hostages trapped in the deadly siege by crazed gunman Man Haron Monis.

In a preview of her upcoming interview with Nine’s 60 Minutes, Ms Denny speaks through tears as she recalls the horror.

“I was very grateful I was able to experience the pure love and happiness of being pregnant,” she says.

Harriette Denny broke down recalling her experience. Source: Supplied

Harriette Denny was among the last hostages to escape the siege. Pic: Bill Hearne Source: News Corp Australia

Ms Denny was among the last group of hostages to escape the cafe where she was working on a day that turned her world upside down.

Ms Denny shared her views on the fear of dying, during the siege which led to the death of her boss Tori Johnson and fellow hostage and barrister Katrina Dawson.

“At that time I remember thinking if he shoots me, as long as I don’t feel it or see it coming, I’d be okay with that,” she says.

She is one of a number of hostages who shared their stories with the program in a special set to air soon.

Martin Place survivors Fiona Ma (left) and Harriette Denny have spoken to “60 Minutes” reporter Liz Hayes about their ordeal. Pic: Toby Zerna Source: News Corp Australia

The network reportedly paid up to $1 million collectively for interviews with survivors by reporter Liz Hayes.

Nine has already previewed interviews with hostages Selena Win Pe and Denny’s colleagues Fiona Ma and Paolo Vassallo.

It has been reported Nine has also signed Julie Taylor, the barrister and friend of Katrina Dawson who is now 23 weeks pregnant and was held inside the cafe until the siege’s dramatic end.

Sydney Siege victim Selina Win Pe describes some of the horrific scenes experienced during the ordeal at the Lindt Cafe in Martin Place. Courtesy: 60 Minutes/Channel Nine