Maternal and fetal events of the first trimester are examined with emphasis on the more common physiologic changes that occur. Suggestions are given for the management of nausea, breast tenderness, frequency of urination, and fatigue. Critical components of initial prenatal care are discussed and timing of subsequent visits recommended. The most common complications of early pregnancy, spontaneous abortion, and ectopic pregnancy are reviewed.
检查孕早期的母婴情况，重点关注发生的较常见生理变化。针对恶心、乳房触痛、尿频和疲劳的处理给出建议。讨论首次产前检查的关键内容，并推荐后续就诊时间。回顾早期妊娠最常见的并发症——自然流产和异位妊娠。
