Denying motherhood
What is it?
If the mother of a child is married or in a registered partnership, her spouse or partner automatically becomes the child's parent. For lesbian couples, there is an additional condition that the child was conceived by artificial insemination using an anonymous sperm donor. You must prove this with an official declaration from the Foundation for Donor Data on Artificial Insemination.
Does the spouse or partner die within 306 days before the birth? Then she still becomes the child's parent if the donor data foundation statement is shown at the birth declaration. Even if the mother has remarried or entered into a new registered partnership in the meantime.
It is possible to deny motherhood. That is, you deny that the co-mother is the parent of the child. The co-mother is the female spouse or registered partner of the biological mother.