The 21-year-old is 350 kilometres west of Ukraine’s capital Kyiv.
“It is really terrifying, we are not sure what’s going to happen in the next hour or even minute,” she said.
“It’s usually after 12am that we’ve been hearing loud bombing noises, shootings, yesterday during the day we saw planes flying above us.”
Ms Nykytyuk got engaged just two weeks ago to her fiancé Sasha, who has now volunteered to fight.
“I’m honestly so, so proud of him but every time I think about it I just want to cry,” she said.
The situation is a world away from her family in the Adelaide suburbs of Woodville West and Findon, where she went to school.
“Now we’re thinking about how to survive, we can’t take any money out, we can’t buy any food products, there’s no petrol left, no money left at the ATMs,” she said.
For Marko Kvasniuk, a resident of the Adelaide suburb of Wynn Vale, his fiance Tetiana is in western Ukraine.
“I’m trying to help her get over the border into Hungary, Poland or Slovakia,” Mr Kvasniuk said.
She has decided to leave but the path out isn’t clear.
“After she’s out in another country then we can worry about everything else but that’s kind of the priority now,” Mr Kvasniuk said.
Watch the full report in the video above.