unpregnancy

例句：

1. 1. The woman was unpregnant and couldn't conceive.
   这位妇女没有怀孕，无法生育。
2. 2.The couple had a child, but the mother was unpregnant at the time of birth.
   这对夫妇有了一个孩子，但母亲在出生时没有怀孕。
3. 3.The doctor advised her to undergo an unpregnancy test before trying for another baby.
   医生建议她在尝试再次怀孕前进行一次未怀孕测试。