Diem Brown's Instagram

Diem Brown Defends Her Wish To Have Children

The 'Challenge' competitor, who's battling cancer, says she's not selfish for wanting kids.

Despite her numerous battles with cancer, Diem Brown has remained steadfast to her goal of one day becoming a mother. But after sharing a difficult update about her third bought with the disease -- she revealed the cancer found in her colon and stomach has spread to her liver and lymph nodes -- the "Challenge" competitor received some harsh backlash about her focus on parenthood.

Related: Diem Brown In Light Of Cancer Spread: 'I Believe I’m Going To Make It'

"This seems to really rile some people up and paint me as selfish," the 32-year-old told People.

"I have done all of the genetic [marker] tests for cancer, and each one of those tests came back negative," she added, before noting that doctors are able to test each egg before implanting the embryo. "I would never wish cancer on a future child -- ever."

Diem had frozen her eggs after her second diagnosis, but her dreams of carrying her own child were dashed after she underwent an emergency hysterectomy in August. Regardless, she says she has no regrets about opting to keep her uterus after her first battle with ovarian cancer.

"When I came out of my surgery, I asked my doctor, 'Did I do this? Did I do this to myself by not taking my uterus out?'" said Diem. "And she was like, 'No. It hid behind it. You have a very rare and smart form of cancer.'"

Through it all, D -- who says she's also open to adopting a child -- has received an outpouring of support from her many fans, her "army of caregivers" and her longtime love Chris "CT" Tamburello. In fact, CT paid tribute to his dear friend in a touching Throwback Thursday yesterday:

Chris “CT” Tamburello's Instagram

"My TBT goes to... The Definition of Grace Under Fire. An inspiration of strength, heart, and hope for so many people. The toughest woman I know... @diembrown #medgift #staystrong #tay Feel free to check out her support page and show some love," CT captioned the old-school photo above of the duo during happier times.

Offer Diem your positive thoughts and continue to support her fight on her MedGift page.