妊婦

1. Origins, structure, and basic meaning

• Structure: 妊婦, read にんぷ, is a noun referring to a pregnant woman.
• Basic usage: It identifies someone offered a seat or the intended participants in a prenatal class.
  • バスで妊婦に席を譲った。

2. Common pitfalls and similar expressions

• A person and the state of pregnancy
  • 妊婦 refers to a person, while 妊娠 denotes pregnancy as a state. 妊娠しています is used to say that one is pregnant.