This is a Rolling Stone Headline-It is paywalled so I couldn't read the article but the title shows that's the line they're going to use-my guess that the claim that all fetuses are female (except the EO can use the Y chromosome in it's definition) "Trump’s Trans Ban Defines Everyone as Female — But That’s Not the Problem Rolling Stone Elizabeth Yuko"
But I think the line "from conception" can be defended by the GC & EO to claim that it is chromosomal which is determined by whether the father contributed an X or Y chromosome.