noun
final month of pregnancy; due month
Refers to the calendar month in which the baby is expected to be born. Often used in expressions like 臨月に入る (enter the final month) or 臨月の妊婦 (a woman in her last month of pregnancy).
妻は来週で臨月に入ります。
My wife will enter her final month of pregnancy next week.
臨月の妊婦は重い荷物を持たないほうがいい。
A woman in her last month of pregnancy should avoid carrying heavy luggage.