Refers to the state of being pregnant or the act of becoming pregnant. Often used in medical or formal contexts.
She noticed signs of pregnancy.
The gestation period is about nine months.
thick chopsticks with both ends equally thin
The noun form of the verb 孕む (はらむ, 'to conceive'). The kanji 孕 is composed of 乃 and 子, suggesting the idea of carrying a child.