There is a maternity-related bill going through legislation in the UK. It was drafted in part by the Government Legal Department who are, of course, a Stonewall Diversity Champion.
Mumsnet have the background,
"This is the thin end of the wedge of a stealthy policy creep that seeks to erase the specific sex-based rights and the biological reality of women in an attempt to include those who identify as men who, as years of evolutionary biology research makes absolutely clear, remain biological women irrespective of their gender identity."
It passed in the Commons, but is now being debated in the House of Lords where a number of sane and reasonable speeches are being made, including this from Baroness Noakes