German Woman Faces Shocking Puzzle: How Many Children Did Her Donor Father Have?

 

A woman in her mid-30s, known as Toni Zimmer (alias), discovered that her social father is not her biological father – she was conceived via sperm donation.

• She has identified at least 34 half-siblings, with the actual number likely much higher.

• Her biological father is a child psychiatrist, and she is pursuing legal action to determine how many times his sperm was used and how many children were born.

• In the 1980s and 1990s, some doctors reused sperm from a single donor repeatedly to cut costs, instead of diversifying donors.

• Lawyer Helga Müller explained that the doctor did not break any laws, as German law does not prohibit repeated use of the same donor’s sperm.

• Since 2018, children conceived through assisted reproduction in Germany have the right to know the identity of their biological father.

Sources – Agencies