Queensland mother delivers twins with different biological fathers after IVF and natural conception
A Queensland woman gave birth to twins whose genetic parents were two separate couples, prompting a novel legal ruling on surrogacy.
In late 2025, a Queensland woman delivered twin children on the same day via caesarean section. One child resulted from an IVF embryo placed in a surrogate for a couple unable to conceive naturally, while the other was conceived naturally by the surrogate herself. Both sets of biological parents have raised the children separately for ten months.
Because Queensland’s surrogacy legislation bars parentage orders for only one “birth sibling,” the children’s court faced an unprecedented scenario. Judge Jodie Woodridge KC ruled that the twins, though gestationally linked, did not qualify as “birth siblings” under the law, allowing separate parentage orders. The families plan to maintain openness about the children’s origins and encourage a relationship between the twins as they grow.
Why it matters
The case clarifies how surrogacy law applies when twins have different genetic parents, setting a precedent for future arrangements.
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