UK Government said the term "pregnant women" should not be used
From Sunday times : Yet in the Foreign and Commonwealth Office submission, Britain opposes the term “pregnant woman” because it may “exclude transgender people who have given birth”. The suggested term is “pregnant people”. And for a response, see the excellent article by Brendan O'Neill in The Spectator: if you are pregnant, you are a woman. Biologically, physically, factually. Your pregnancy is proof of your womanhood. (Of course women do not need to get pregnant to prove they are women.) You can identify as a man, of course. People should have the right to identify as anything they like. But in reality, in the world of flesh and hormones and common understanding, you are a woman. Men cannot get pregnant. The spat over ‘pregnant people’ cuts to the heart of a discussion very few people want to have: about how self-identification is all well and good but it does not, and cannot, override physical and cultural reality.