二孩政策 (èr chái zhèng cè): The two-child policy implemented in China since 2016, which allows most couples to have two children.
超生 (chāo shēng): Refers to giving birth to more children than allowed by the government's population control policies.
家庭计划生育 (jiā tíng jì huà shēng yù): Family planning, which includes policies and measures aimed at controlling population growth.