‘早孕’ literally means ‘early pregnancy’ — combining 早 (zǎo), meaning ‘early’ or ‘morning’, and 孕 (yùn), meaning ‘to be pregnant’ or ‘pregnancy’. It specifically refers to the first trimester of pregnancy, typically the first 12 weeks after conception, when hormonal changes begin and early signs like missed periods, nausea, or fatigue may appear. In clinical and everyday contexts, 早孕 is often used in phrases like 早孕测试 (early pregnancy test) or 早孕反应 (early pregnancy symptoms).

This term carries a neutral-to-formal register and appears frequently in medical settings, health education materials, and personal discussions about reproductive health. Unlike the more general term 怀孕 (huái yùn, ‘to be pregnant’), 早孕 emphasizes timing and the initial physiological stage — it does not refer to pregnancy as a whole, nor does it imply complications unless specified (e.g., 早孕出血, ‘early pregnancy bleeding’). It is commonly used by healthcare providers, in diagnostic reports, and by individuals seeking confirmation or care during early gestation.