artificial wombs [external to the body] - so some poor woman in a dangerous [physically or chemically] job can have a kid without worrying about the dangers in case of industrial accident, or even military service. So some poor woman [like me] with health issues that hit during pregnancy can have the kid without her own body giving out [high blood pressure is amazingly dangerous, as a single example] and also allowing for 2 people to have a child without a surrogate mother that may be either illegal in some areas, or decide to keep the child as things may happen.
note this is not cloning, just a variant of IVF and/or placental transfer by cesarian way early in the pregnancy
A form of birth control where the body simply hits puberty, perhaps cycles once then the bleeding and egg production get turned off but somehow magically maintains the right blend of hormones to allow maturation and health. And it is easily reversed if they want to reproduce.
*I would really like to see some training required before allowing birth. If you cant pass the basics of keeping them healthy, and raising them in a reasonable manner, you really shouldn’t reproduce, it would be nice to not have as many kids in the foster system from abuse, and really I would like to see some limit on the number of kids you have according to your income.