Updated

A man who believed he was the father of a newborn girl was shocked to learn his estranged wife had faked the pregnancy and snatched an infant from a hospital in an effort to continue the ruse, police said.

Grisel Ramirez, 48, is accused of posing as a visitor to enter Garden Grove Medical Center, where she attempted to abduct a baby Monday, Lt. Jeff Nightengale said Tuesday.

She remained held without bail and was due for arraignment Wednesday. Authorities have not yet filed any charges.

The husband had no idea she wasn't pregnant, Nightengale said.

"She perpetuated this myth for several months, and they don't live together and don't see each other, so the husband totally believed it," said Nightengale.

When the due date passed, Ramirez' husband pressed her to meet the child and asked whether he needed to sign the birth certificate, police said.

"We interviewed him last night and he for sure thought he was the father of a baby girl," Nightengale said. "He was upset and devastated that it wasn't true."

Ramirez, a waitress, may have approached other pregnant women and asked about their due dates and their baby's gender at another Southern California hospital last month, Nightengale said.

One woman grew suspicious of the questions and told staff at Western Medical Center-Anaheim.

There was no surveillance video available at the hospital, so police used a photo lineup for the people who witnessed the woman's strange activity on July 26. They identified Ramirez as the inquisitive lurker, they said.

Garden Grove Medical Center Director Sofia Abrina said Tuesday that Ramirez presented herself as a visitor who wanted to visit a patient when she entered the hospital Monday.

Abrina said when a sensor attached to a bracelet around the baby's ankle set off alarms, the staff began searching and counting patients until Ramirez was apprehended.

Ramirez is accused of entering the room of the baby's mother and posing as a nurse who told the woman to shower before a doctor came to examine her. Police said that once the baby's mother was out of the room, Ramirez put the newborn in a purple tie-dyed tote bag and tried to carry her out of the ward.

Many hospital wards have security systems where patients, such as newborns or those with Alzheimer's disease, are tagged with an electronic sensor -- usually in a bracelet or anklet -- that sets off an alarm when the patient leaves a certain perimeter.

The baby wasn't harmed during the short time she was in the tote and was returned to her mother.