Theresa Andrews, 23, has been missing since Wednesday afternoon and Ravenna Police are still searching for clues.
Investigators said Friday Theresa's due date is Oct. 4 and revealed that she has Streptococcus B. The infection cannot be treated with medication and is not life-threatening to her, but will harm her baby if he is delivered without proper monitoring by hospital staff.
"The family is renewing their plea to anyone with any knowledge of Theresa's whereabouts to please come forward," said Lou Meyers, the family's attorney.
Andrews was last seen at 6:15 a.m. Wednesday when her husband, Jon, left for work. He returned a pager message from Theresa at 9:15 a.m. in which she told him a woman had called to inquire about the 1999 Jeep Wrangler the couple is trying to sell.
He told police no one answered the phone when he tried calling his wife at home throughout the day. He arrived home at 4:30 p.m. to find the house unlocked, his wife and the vehicle missing and her half-eaten breakfast on the kitchen table.
The police department located the vehicle at 6 p.m. Wednesday in the north parking lot of the Portage County Administration Building. The Jeep Wrangler is being held in a secured building as evidence in the case.
The Bureau of Criminal Investigation ran forensic tests on the vehicle, but police are not releasing any information on the results.
Ravenna Police Detective Greg Francis said Friday Jon passed a polygraph exam given Thursday afternoon.
He also said the department has expanded its hospital notification statewide and is still waiting for phone records from MCI and Ameritech.
"We won't know how important the phone records are until we get them," Francis said.
All information about the case has been entered into a nationwide database to keep all police departments and the FBI abreast of new developments.
In addition, the family has hired Rae Investigators, a private investigation firm, to assist police in their efforts.
"We have handled missing persons cases in the past," said Darryl Graves of the firm. "Our role will be to assist the police department and perform follow up to bring this situation to a successful climax."
Investigators said there is not enough evidence to suggest one way or another if Theresa was abducted or if she left willingly.
"We are still treating this as a missing persons case until new evidence suggests otherwise," Francis said.