A Thceyn birthing takes the inverse shape of ours. A new Thceyn forms as a thin, flexible membrane around the Thceyn world. Micrometers thick at first, it grows until it strains to hold the world in and the pressure hurts its taut, flattened organs.
(affectionately, to baby) I'm going to protect and nurture you until one day you can hurt my feelings more accurately than practically anyone else can.
People used to have kids regardless of whether they wanted them; now there is selection for wanting children, which is correlated with being loving parents.
A pretty terrible experience. Writing about it in large part to get it out of the way and move on with my life, in small part because some events are darkly funny.
A quarter baked hypothesis as to why most non WEIRD (Western, Educated, Industrialized, Rich and Democratic) cultures seem not to have 'mind to mind' parent/child relationships.