The speeding drink driver who killed a Melbourne nursing student, then fell pregnant after the crash, has been accused of selfishly dragging out the court case.

Subha Anand, 29 was triple the legal blood-alcohol limit when she slammed into the back of 19-year-old Natasha Pigot's car at Williams Landing in January 2016, killing the young woman.

In the months that followed, Anand married her boyfriend and had a son, delaying her court case.

She pleaded guilty to culpable driving in June, more than 18 months after Ms Pigot was killed.

Subha Anand. (9NEWS)

The victim's mother Aleacha McMaster on Thursday spoke of the disbelief and heartbreak of losing her daughter.

"I wanted to die with her. How could I live my life without my baby?" she said at Anand's pre-sentence hearing in the Victorian County Court.

She said Anand never apologised for what she did, and selfishly delayed court proceedings.

Nursing student Natasha Pigot. (9NEWS)

"I don't think I could ever forgive you," she said.

"You dragged this out for your own selfish purposes."

Outside court, Ms McMaster said: "She chose to have the baby, get married and live a different life after she caused this accident."

Anand has applied to have her child with her while she serves an inevitable prison sentence.

Aleacha McMaster, mother of Natasha Pigot, is seen leaving the Victorian County Court in Melbourne.

She had been drinking at home on the night of the crash but stormed out after an argument with her boyfriend.

She was travelling an estimated 115km/h in a 70km/h zone moments before she hit Ms Pigot's car.

"There is no evidence of braking," prosecutor Brendan Kissane QC said.

The crash occurred in Williams Landing in January 2016. (9NEWS)

She was taken to hospital and later blew a blood-alcohol reading of 0.159 per cent.

"(She was) not in a position to have the proper control of a motor vehicle," Mr Kissane said.

Anand, who grew up in New Delhi in India, will be sentenced on Friday, her 30th birthday.

She had been on bail but was taken into custody on Thursday before the sentencing.