Laci Peterson's family has begun making plans for her funeral, but it may be a while before they can bury her and her unborn son.
The remains are being held at the coroner's office in Contra Costa County, California, while forensic experts try to determine how they died.
The sheriff's department says the funeral dates will depend on how soon they can pinpoint a cause of death, and how quickly they release the remains to her family.
A spokesman says investigators may never know precisely how Laci Peterson and the unborn baby died, but he says a forensics expert will exhaust all the possibilities.
Scott Peterson was formally charged with murder yesterday. Prosecutors say he killed his wife at their Modesto home last December.