the.com/family planning

means The practice of deliberately deciding when to have children and how many to have, usually with the help of contraception or fertility planning.

from A 20th-century euphemism, built from plain old 'family' and 'planning' — the word 'plan' tracing back to Latin 'planus' meaning flat or level, as in a flat diagram laid out before building something. The phrase itself was popularized in the early-to-mid 1900s, notably by reproductive rights advocates, as a deliberately mild, bureaucratic-sounding term that let people discuss birth control without actually saying 'birth control.' The euphemism was the point — it made a controversial subject sound like scheduling a budget.