Mrs Warren-Clark is 46th on the Labour Party's list, leaving her only one short on the election-night result that secured 45 seats for Labour in Parliament.
She admitted to feeling quite nervous.
"I absolutely feel on tenterhooks. It's quite a surreal experience, and I have been trying to spend time focusing on what I need to do here to finish up should I be successful."
Campaign running mate Jan Tinetti, the Labour candidate for Tauranga, had already made to Parliament as a list MP.
Mrs Warren-Clark said she had not done any number-crunching herself, and left that to party officials.
"That's why I became a lawyer, as maths has never been my strong point, "she quipped.
"This vote is unprecedented. We can make forecasts based on assumptions from past elections that Labour will do well from the special votes, but we can only hope it goes our way this election.
"But this is not about me; it's about the party vote. However, I remain hopeful, very hopeful that the votes do go our way and it brings me into Parliament," she said.
"I definitely have butterflies in my stomach but all I [can] do is wait to see what happens."
Mrs Warren-Clark said standing as a candidate for the Bay of Plenty electorate and moving into a political role was an "intensely personal" decision.
"We're a growing city which does lots of great things, But there are lots of issues which need far greater attention. That includes reducing our homelessness population and tackling the problem of lots of children being excluded from school," she said.
Mrs Warren-Clark said that should the special votes not favour Labour enough to get her over the line, she planned to resume her manager role at Tauranga Women's Refuge. She has been the manager for the past four years.
Mrs Warren-Clark said if she was unsuccessful she intended standing again in 2020, and campaigning would start on Monday.