Bridgewater Detective Inspector Tim Dooley said police were considering the possibility that the 28-year-old mother of two may have been murdered.

The last confirmed sighting of Ms Eaton was at 2.30am on Saturday, February 1, in a house in Sage Court at Bridgewater where she had been drinking with a small group of people.

Her sister, Sandra Eaton, and mother, Margaret Pickrell, yesterday called for anyone with information about her disappearance to come forward.

"I am begging anyone who knows anything that may help us find my little sister to come forward and help ... help us bring her home," Sandra Eaton said.

"We still have hope, although it's getting harder and harder every day, and pray that someone will be strong enough to come forward with information that brings her back to us.

"I know there are people out there that would know what has happened and I am asking you to put yourself in our shoes and think about how you would feel if someone has taken your sister, or your mother, or even your daughter.

"And I'm begging you to bring us closure as to what's happened as it will only hurt us more to never see or hear from her again."

Sandra Eaton said her sister was a "caring, loyal and trusting person" and an "amazing mother" to her two daughters.

"[She] would be devastated about missing their first days back at school," she said.

Detective Inspector Dooley said he still held out hope that Jodi Eaton would be found alive, but said that murder was a "possible scenario".

"She may be alive but the reality is 12 days it doesn't look good and hopes of finding Jodi alive are fading rapidly," he said.

Police have prioritised the forensic testing of more than 25 items seized from the Sage Court property and around Bridgewater, part of a total 100 exhibits seized.

Detective Inspector Dooley said police were talking to several people of interest but needed more information.

Anyone with information can call Crime Stoppers anonymously on 1800333000, or contact police.