The search for a pregnant Tennessee woman enters another week.
Erin Corwin, 19, disappeared last week from her husband's military base in California. She was leaving her home and reportedly headed to Joshua Tree National Park to find places to take pictures. Three days after her husband reported her missing, her car was found.
So far no other clues have surfaced. Right now her husband is not considered a suspect, but police say her disappearance is suspicious and homicide investigators are leading the case.
Police said, "We know that she is out there. It's just a matter now to figure out where. We are also looking at it from a potential criminal investigation so we don't want to destroy any evidence that we may be able to recover."
At least 50 volunteer search and rescue workers are also involved in the case. Corwin's mother told CNN she learned she was going to be a grandmother shortly before her disappearance.
"It just doesn't seem real. Her ringtone on my phone is a horse neighing and galloping, and I would give anything to hear that ringtone. Anything."
More on AOL:
Wild near-collision on Barcelona runway
Report: More than 60 girls escaped Boko Haram Friday
Oregon mental hospital to honor 'forgotten souls'