Man charged over death of pregnant woman who fell from moving car

A 35-year-old man has been charged with causing the death of a pregnant woman who was flung from the backseat of her car in north-west Melbourne.

William Wilson was charged yesterday afternoon with causing her death by driving dangerously.

Keilor Downs woman Helena Broadbent, 32, was airlifted to hospital, where doctors were able to deliver her baby via emergency C-section just hours before she died from her injuries.

His matter was heard in absentia at the Melbourne Magistrate's Court last night, where his lawyers did not apply for bail.

He was remanded to remain in custody ahead of a first appearance in court on Wednesday.

Wilson's lawyer also revealed this is his first time being imprisoned.

Police allege Wilson was having an altercation with Ms Broadbent at a home on Kiwi Retreat in Keilor Downs about 1pm on Saturday.

They believe the argument continued in a car Wilson was driving, with Ms Broadbent falling from the back seat onto the road as the car hit a corner.

She was flown to hospital but died after delivering the baby.

The baby - Ms Broadbent's third child - remains in hospital in a critical condition.

Homicide Squad detectives are investigating.

Any witnesses or anyone with information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report at www.crimestoppersvic.com.au.