The fetus’s gonads remain undifferentiated throughout early development, meaning that all of its genitalia are identical and phenotypically female.
People on Twitter have definitely noticed this, even if the team behind Trump’s executive order hasn’t.
“In case you missed it, yesterday Trump signed an executive order stating that the gender of every American is predetermined at conception.
During conception, all human zygotes are female. After witnessing the directive, one user tweeted, “Dennis Trump just created approximately 160 million F2M transgender people.”
“Fun fact: sex is determined at conception as Trump’s executive order says, therefore we’re all assigned female at conception,” said another commenter.