"I feel I'll know [if I want kids] once I meet my person. I am having my eggs frozen in a few months though," she said on an Instagram Q&A.
"Just so I don't have to worry about my body clock putting pressure on me.
"And if one day I'm still single but feel as though I'm ready to have a baby I'll be able to do it on my own with a sperm donor."
The former reality star, who shot to fame on the first season of Love Island Australia in 2018, said she received an overwhelmingly supportive response from her 400,000 Instagram followers.
"I had no idea so many of you would resonate with this! I will absolutely vlog the process once it starts and document it all," she said.
Cassidy's candor about her fertility journey comes after former Bachelor star Brittany Hockley revealed she had frozen her eggs.
Britt, 33, made the decision to take control of her fertility as she "wanted to know that I would have the option down the track if need be."
"I was very single when I chose to freeze my eggs," Britt explained last month on her and Laura Byrne's podcast Life Uncut.
Britt added that she had her consultation on a Friday and later that night night was the first time she met tennis player Jordan Thmopson, who was 26, on their first date.
"Most of you know Jordan and I fell head over heels in love from day one, we started to spend every day together so after about a week, it was really soon, I just told him what was happening. It's something that you can't hide from your partner, and I didn't want to hide it," she said.
She then recounted how she told Jordan that she was about to start her egg freezing process on a walk at Sydney's Bondi Beach.
"I was like 'Is this going to scare him off because he thinks I want to settle down and have kids now?' He didn't really say anything, we didn't have a big conversation about it, we just changed the subject."
However, the next day Jordan came back to Britt and revealed he'd researched egg freezing on his own so that the two could have a proper conversation about it, something the Bachelor alum said she was "so thankful for."