Australia’s discrimination law has reached the point at which “potential pregnancy” can be discussed as a protection relevant to a person for whom pregnancy is biologically impossible.
The exchange was widely mocked because it sounded absurd. The more serious problem is that the absurdity did not arise from a slip of the tongue. It arose from the attempt to make two incompatible legal descriptions operate simultaneously: pregnancy as a sexed biological reality, and “woman” as a category capable of including a biological male.
During Australian Senate Estimates in May, Sex Discrimination Commissioner Dr Anna Cody was pressed by Senator Michaelia Cash on whether a transgender woman — that is, a biological male who identifies as a woman — could engage the protections in the Sex Discrimination Act concerning “potential pregnancy”. Cody accepted the obvious biological premise that a male cannot become pregnant, yet maintained that discriminatory treatment connected with an employer’s assumption or understanding about future children could, depending upon the facts, fall within the statutory scheme. The exchange later became the subject of a Senate statement by Senator Leah Blyth, who said the result was impossible to reconcile with biological reality.1
It is important to state the legal history accurately. The Gillard Government did not invent the Act’s protection for pregnancy or potential pregnancy. Those protections pre-date the 2013 amendments. What the Sex Discrimination Amendment (Sexual Orientation, Gender Identity and Intersex Status) Act 2013 did was add new protected attributes including gender identity to an already existing statutory architecture of sex, pregnancy and sex-based protections.2 The present contradiction is therefore not that Julia Gillard’s government legislated that men can become pregnant. It is that gender identity was inserted into a legal structure whose other provisions presupposed the biological distinctions between male and female.
That distinction matters because otherwise criticism becomes too easy to dismiss. The problem is more serious than a foolish clause deliberately written into an Act. It is a collision between categories. Once a legal system treats a male person as a woman for one protected characteristic, lawyers and regulators must decide what happens when that classification meets protections that exist precisely because female bodies have characteristics male bodies do not possess.
Pregnancy discrimination law has an intelligible purpose. Women can be disadvantaged in employment because they are pregnant, may become pregnant, take maternity leave, or are assumed by employers to be likely to do so. The law properly prevents employers from turning the female capacity for maternity into an economic penalty. “Potential pregnancy” therefore refers to a real possibility grounded in the reproductive nature of women, not to an abstract aspiration to parenthood detached from pregnancy itself.3
The difficulty appears when the legal category “woman” is no longer secured to female sex. A statute may declare that gender identity is independently protected. It may prohibit unfair treatment of transgender people. Those are juridical choices Parliament can make. But the law cannot make biological predicates transferable merely by placing different protected attributes beside one another. A male person may be protected against discrimination because of gender identity; that does not make him potentially pregnant. A woman may be protected because of pregnancy; that protection has meaning precisely because pregnancy is possible for her sex.
The distinction is not pedantry. Law depends upon categories that correspond sufficiently to reality to permit rights, duties and exceptions to be intelligible. If the word “pregnancy” no longer requires the possibility of pregnancy, the category has ceased to describe the condition from which the protection arose. It becomes a floating legal sign attached to identity rather than a response to a material fact.
The Australian controversy follows the litigation in Giggle for Girls v Tickle, in which the Federal Court considered the interaction of gender identity and sex discrimination provisions. That case has become politically explosive because it forces Parliament and the courts to confront a question that legislation could postpone but not eliminate: when sex and gender identity point in different directions, which category governs a sex-specific protection?4
There is a tendency in such controversies to pretend that the only alternatives are cruelty or ideological compliance. That is false. A legal order can protect persons from harassment, arbitrary dismissal and unjust treatment without requiring the law to deny sexual difference. Indeed, clarity is especially necessary if competing rights are to be reconciled fairly. One cannot balance rights when the categories identifying the rights-holders have first been rendered indeterminate.
Women’s protections were not created because “woman” was a preferred social label. They arose because female people encounter vulnerabilities, burdens and forms of discrimination connected with their sex: pregnancy, maternity, sexual violence, physical disparity, privacy and reproductive biology. If a legal definition detaches womanhood from sex, it does not merely add another group to an existing category. It changes the basis upon which the category was created.
This is why the Senate exchange is more revealing than the inevitable clips and jokes suggest. Cody was attempting to explain a statute after the law had been required to accommodate categories that do not always fit together. The resulting language sounded incoherent because the underlying premises are in tension. One premise says pregnancy protection exists because women may become pregnant. Another says a person need not be female to be a woman in law. The moment those propositions meet, somebody has to explain how a person who cannot become pregnant can nevertheless enter a discussion about discrimination on the ground of potential pregnancy.
There is a wider lesson here about legislation shaped by identity theory. Words in law are not infinitely elastic. Parliament can define terms for statutory purposes, but definitions have consequences outside the sentence in which they are inserted. A redefinition of sex or woman does not remain confined to questions of courtesy or nomenclature. It travels through employment law, sport, prisons, medical policy, statistics, single-sex associations, privacy and every provision in which biological sex once supplied an unspoken but stable premise.
The honest response is not to ridicule individuals but to repair the law. If Parliament wishes to protect gender identity, it should say precisely what that protection covers. If it wishes to preserve sex-based rights, it must identify sex accurately and state where sex governs. The two questions should not be collapsed into one another. Equality before the law does not require equivalence between things that are not equivalent.
Reality does not become discriminatory because legislation finds it inconvenient. Men and women possess equal human dignity; they are not biologically interchangeable. Pregnancy is not an identity. Potential pregnancy is not a metaphor. A legal system that protects women from discrimination because they may become pregnant should be able to say, without embarrassment or circumlocution, who can become pregnant.
The Australian Parliament now has an opportunity to do something increasingly unfashionable: define before it regulates. That is not hostility to anyone. It is a condition of coherent law.
1 Parliament of Australia, Senate Hansard: Gender and Sexual Orientation, 22 June 2026.
2 Parliament of Australia, Sex Discrimination Act 1984; see also the Sex Discrimination Amendment (Sexual Orientation, Gender Identity and Intersex Status) Act 2013.
3 Australian Human Rights Commission, Federal Discrimination Law: The Sex Discrimination Act, discussion of pregnancy and potential pregnancy.
4 Federal Court of Australia, Giggle for Girls Pty Ltd v Tickle [2026] FCAFC 64.
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