Three months for bereavement leave is a more realistic standard than three days, according to Cacciatore.

CNN: Father's campaign: More time off for grieving parents

Some companies extend domestic partner benefits to one area, like bereavement leave, as a test, says Ilse de Veer, a benefits consultant with Mercer Human Resource Consulting.

FORBES: Married Or Not, Gays Gain Partner Coverage

The average bereavement leave for a person who loses a child is three days, according to Dr. Joanne Cacciatore, a researcher at Arizona State University and the founder of the MISS Foundation, which provides support to grieving families.

CNN: Father's campaign: More time off for grieving parents

John Tester, D-Montana, proposed the Parental Bereavement Act, which would amend the Family and Medical Leave Act to incorporate extended, job-protected leave for the loss of a child.

CNN: Father's campaign: More time off for grieving parents