How to say "pregnancy" in Japanese

• 妊娠にんしんJLPT N1approx.Common
  noun, suru verb, intransitive verbThe ordinary word for pregnancy, covering the state of being pregnant from conception onward. Use it in everyday speech and writing, e.g. when telling someone you are pregnant or discussing prenatal care.
  妊娠にんしん検査けんさを受うけたいのです。↗

  I'd like to get a pregnancy test.
• 懐妊かいにんCommon
  noun, suru verb, transitive verb, intransitive verbAlso means pregnancy or conception, but with a formal, somewhat literary flavor. It is not the usual word in conversation; it appears mainly in announcements or written notices that someone has conceived.

Both words mean pregnancy; 妊娠 is the everyday word for being pregnant, while 懐妊 is a more formal or literary expression for conceiving a child.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 妊娠にんしんpregnancy
• 懐妊かいにんpregnancy
• 妊孕にんようpregnancy
• 懐胎かいたいconception
• 胚胎はいたいgermination
• 孕みはらみconception