在英语中，"怀孕" 的意思是 "to be pregnant"。这个表达来自拉丁文 "praegnantem"，意思是 "carrying young"。

下面是一些例句：

She is pregnant with her first child. (她怀着她的第一个孩子。)
He didn't know she was pregnant until she was in her third trimester. (他直到她怀孕到第三个孕期才知道。)
The doctor confirmed that she is six weeks pregnant. (医生证实她怀孕六周了。)
Pregnancy can be a physically and emotionally challenging time. (怀孕期间可能是一段身心都有挑战的时期。)