Jessica has 77 half-brothers and sisters through the same sperm donor. She wonders how many more there could be

Queensland woman says its time for clinic to destroy 30-year-old samples as state and federal health ministers meet to push for reform

• Get our breaking news email, free app or daily news podcast

Queensland woman Jessica Hamilton has 77 half-brothers and sisters. But this week she learned that number could grow even further - swelled by new births.

In 1995, the year she was born, Queensland Fertility Group told Hamilton's mother that she could expect to have between three and five siblings to other families.