An expectant mum-of-two has spoken out after being savagely attacked by a dog on the Mornington Peninsula at the weekend.

Ash-lee Wenman, 21, drove to visit a friend at a Hastings home on Saturday afternoon. After exiting her vehicle in the driveway, the friend walked up to Ms Wenman with a dog on a lead, and asked her to pat it.

Scared of dogs, Ms Wenman was hesitant, telling 9News she feared the dog would attack her as it started growling at her.

Ms Wenman continues to recover from her injuries. (9NEWS)

Seconds later, the dog jumped up and began attacking the pregnant mum, latching onto her right breast.

The dog was pulled away and down to the ground, but then attacked Ms Wenman’s breast again.

“I honestly thought it was going to get my throat and I was going to die.”

The dog's owner has told 9NEWS they plan to euthanise the animal. (9NEWS)

The expectant mum was taken to hospital with wounds to her hand and right breast following the dog attack. (9NEWS)

In an attempt to protect herself, the 21-year-old covered her breast with her hand, only to have it bitten by the dog.

She said the dog locked its jaw around her hand, as she tried to kick the animal off her.

“It was playing tug-o-war with my hand,” the young mum said.

"It was playing tug-o-war with my hand," Ms Wenman said. (9NEWS)

Finally, the owner managed to pull the dog away and put it in the car, reprimanding it with “naughty boy” but doing little to assist the victim.

“I was just screaming for an ambulance and... the owner of the dog was just sitting there like nothing had happened,” Ms Wenman said.

Ms Wenman was rushed to the Frankston Hospital and has since received surgery, but continues to suffer tremendous pain.

The Mornington Peninsula Shire told 9News a ranger was contacted on the evening of the attack and visited Ms Wenman in hospital for a statement.

9News Melbourne crime reporter Alexis Daish spoke exclusively with Ms Wenman today. (9NEWS)

“As the dog in question is kept outside of our municipality, the Shire is working with the relevant Council to follow up the investigation,” the statement read.

9News understands the owner of the dog, and the dog itself, live in Pakenham.

Ms Wenman said she wanted the dog put down.

“I don't think the dog should be roaming around…it could get a kid and kill a kid.”