Your pronouns should be
never read/a/book
Ever heard of intersex people? It is uncommon, but a significant percentage of humans are born intersex. Examples include people born with XY chromosomes (cis male) who have no external male genitalia. People can be born with a resistance to male hormones and be male chromosomally but present very feminine. Human gender and sex are a spectrum. It’s why some men can grow a full beard and some barely have any facial hair. It’s the reason some women have large breasts and others do not. Everyone is different. That’s nature. Read a book for goodness sake. Or, hey, crazy idea. Google is free!