Not only the word "woman" but even "female" may not be used anymore to refer to female people i.e. women, because it would exclude transgender males, and "erroneously" include transgender females.

https://twitter.com/PennyRed/status/840283430113931264

Laurie Penny, "journalist, author, feminist, nerd" and contributing editor to New Statesman, with 164K followers on Twitter, has asked what word may be used for people who "have a uterus and all that".

https://twitter.com/kitemonster/status/840320725869252608

https://twitter.com/kitemonster/status/840321008334585856

One person suggested using the term "gestational bodies" to refer to women's bodies, supporting also the term "menstruators" (see next).

http://www.feministcurrent.com/2016/09/07/are-we-women-or-are-we-menstruators/

http://adland.tv/adnews/planned-parenthood-call-women-menstruators-receive-twitter-backlash-their-target-market

Planned Parenthood has used the term "menstruators" to refer to women who menstruate, to avoid implying that only women menstruate. Some men and "nonbinary" people also menstruate, you see.

http://www.assignedmale.com/

http://68.media.tumblr.com/03dd3c98ba09cf93a47d0f8b4b39c23d/tumblr_ncyld9J3fN1tm163xo1_1280.jpg

According to the web comic Assigned Male, 5.8K followers on Twitter, 106K Likes and 105K followers on Facebook, a person's body is of the sex they identify with. In other words, a penis is a female organ if it belongs to a transwoman.

https://twitter.com/DanielleMuscato/status/839611526998818817

Danielle Muscato, ~100K followers on Twitter, says that some women have penises and that if you can't get over that you should suck his dick.

https://www.autostraddle.com/its-time-for-people-to-stop-using-the-social-construct-of-biological-sex-to-defend-their-transmisogyny-240284/

http://everydayfeminism.com/2017/02/trans-women-not-biologically-male/

https://www.youtube.com/watch?v=eWVRzGMVXbM

http://sociologyinfocus.com/2016/08/sex-is-a-social-construction-even-if-the-olympics-pretends-its-not/

It has become a popular, mainstream position in transgender activism to claim that biological sex is a social construction.