"De facto custodian", for purposes of IC 31-14-13, IC 31-17-2, and IC 31-34-4, means a person who has been the primary caregiver for, and financial support of, a child who has resided with the person for at least:
Any period after a child custody proceeding has been commenced may not be included in determining whether the child has resided with the person for the required minimum period. The term does not include a person providing care for a child in a foster family home (as defined in IC 31-9-2-46.9).
IC 31-9-2-35.5