The Hills star Kristin Cavallari, 25, is delaying her wedding to Chicago Bears quarterback Jay Cutler, 28.

But before fans of the former Dancing With The Stars contestant start to worry, Cavallari has good news: the only reason she's not getting married is that she doesn't want to be a pregnant bride.

I'm not even looking for a wedding dress right now, Kristin Cavallari told Celebuzz.

I'm pregnant! I'm not going to go try on wedding dresses.

Cutler: Couple Never Broke Up

Kristin Cavallari and Jay Cutler were engaged in April 2011, and the couple announced Cavallari's pregnancy this January.

Before Cavallari got pregnant, however, rumors were spreading that she and Cutler broke off their wedding plans--and their relationship--just a few months after they got engaged.

In November, however, the former Hills star confirmed that the wedding was back on, and Cutler has since insisted that they never broke up in the first place.

We don't usually comment on our relationship but for the record I never broke up with Kristin, he tweeted last month.

Its unfortunate some people are saying hurtful things during such a joyous moment in our life.

'We are so excited for this little bun in the oven.'

Kristin Cavallari and Jay Cutler may be putting off their wedding, but they remains excited to get married and overjoyed to be having their first child.

Thanks for all the sweet messages! We are so excited for this little bun in the oven, Cavallari posted for her 741,000+ Twitter followers last week.

The celebrity couple even received well wishes from Heidi and Spencer Pratt, the most notorious couple from The Hills.

Heidi and Spencer actually sent me flowers, she said. Which was really sweet.

Kristin Cavallari also dropped hints that she's working on a new reality show to follow up her stints on Laguna Beach and The Hills.

She's keeping the details under wraps, but insists it will not focus on her private life.

My baby will never be on TV, she said.

'I work out two to three times a week.'

While she waits for her dream wedding, meanwhile, Cavallari is working towards fitting into her dress even before she's tried a single one on: in the midst of her pregnancy, she's still working out almost every day.

I work out with my trainer two to three times a week... I try to do cardio a couple times on my own, she told Celebuzz.

I try to go outside and go hiking and I'm trying to mix it up.

To watch Kristin Cavallari's full interview with Celebuzz, including how she and Jay Cutler first met, click here.