Dive into your creative stream
A part of me legit wants to see an alien x human female couple in media where the alien learns about periods, and they're just frantically caring for their female human s/o and desperately trying not to mess anything up because they've literally never heard of menstruation, but feel completely horrible about the fact their s/o suffers through it.
Alien: You're telling me that for seven days each month, you're subjected to immense agony, bleeding, and intense emotional change?
Fem Human: Yeah, pretty much.
Alien: And there's utterly nothing I can do to remove these forthcoming events?
Fem Human: Not any that would have potentially undesirable consequences depending on the person.
Alien: Oh my love, I am so terribly sorry.