pregnancy; conception (a somewhat formal/old-fashioned term).
妻が懐妊したと聞いて、家族中が喜んだ。
When we heard that my wife was pregnant, the whole family rejoiced.
医師から懐妊の診断を受け、今後の生活を話し合った。
After receiving a pregnancy diagnosis from the doctor, we discussed our future plans.
懐妊中は栄養管理と定期検診が大切だ。
During pregnancy, nutrition management and regular check-ups are important.