The noun 孕妇 (yùnfù) means "pregnant woman." It combines 孕 (pregnant) and 妇 (woman) into a formal term commonly used in medical, news, and official contexts. It is more formal than the colloquial expression 怀孕的女人.
孕妇应该定期去医院做检查。
yùnfù yīnggāi dìngqī qù yīyuàn zuò jiǎnchá.
Pregnant women should go to the hospital for regular checkups.
公交车上有专门给孕妇留的座位。
gōngjiāo chē shàng yǒu zhuānmén gěi yùnfù liú de zuòwèi.
There are seats specially reserved for pregnant women on the bus.
医生建议孕妇多吃水果和蔬菜。
yīshēng jiànyì yùnfù duō chī shuǐguǒ hé shūcài.
The doctor recommends that pregnant women eat more fruits and vegetables.