Unlike most women who undergo the breast removal surgery, Stephanie decided against having boob implants, staying flat chested instead.
"A lot of my friends had complications and some even had them removed," Stephanie explained.
"After really mulling it over I didn't really like the look of reconstructed breast, so I decided I wanted to go flat and that I'd be more comfortable that way," she said.
She said she felt as if her breasts had already "served their purpose" after feeding her son Josiah, now six, while he was a baby.
Stephanie went ahead with the surgery at age 28 with the support of family and fiancée Diana, and is now feeling more confident than ever.
"For me personally, I never really loved my boobs, and I never saw them as a sign of femininity, so when I was diagnosed it wasn't really a difficult decision to have the double mastectomy," she said.
She urged other women not to feel pressured to get implants after having their boobs removed.
"Just because society pushes this idea that boobs represent femininity isn't true, you don't have to get implants you can go flat and that doesn't make you any less of a woman," she added.
What is the BRCA gene?
IT'S been dubbed the 'Angelina Jolie gene', after the Hollywood actress had preventative surgery to reduce her risk of cancer. But what is the BRCA, and how can Brits get tested? Here's what you need to know...
All of us have BRCA genes, and we inherit two copies - one from each of our parents.
They are called tumour suppressors, because their job is to repair damaged cells and prevent them from growing and dividing too rapidly.
Mutations in the BRCA1 and BRCA2 genes can cause cells to become abnormal, and grow in an uncontrolled way.
Stephanie said that even her surgeon tried to "sway" her towards getting implants.
She said: "It does take a while to adjust to something as big as this but honestly I'm the most confident I've ever been now I'm flat - I feel like an absolute badass
"It makes me unique, and I love it."
Since her breast removal last year, the mum set up accounts on and TikTok to document her journey.
Known as the to her followers, Stephanie is trying to raise awareness of the BRCA gene.
"I hope people see this account and start testing themselves," she said.
How does BRCA testing work?
Doctors test for BRCA gene mutations using a blood test, which is then analysed in the genetics lab.
Tests should be offered to patients whose risk of being a carrier is 10 per cent or more, according to NHS England guidelines.
If you have a personal or family history or ovarian and/or breast cancer, you may be offered a test.
But a leading cancer research institute is calling for ALL women over the age of 30 to be tested for the faulty gene.
Researchers at Barts Cancer Institute found that nationwide testing could prevent up to 64,000 cases of breast cancer and 17,000 cases of ovarian cancer in the UK alone.
Dr Ranjit Manchanda, a consultant gynaecological oncologist at Barts Cancer Institute, that this would save the NHS money in the long-run, as well as saving lives.