unintended pregnancy

基本解释

And half the women in the US will have an unintended pregnancy by age 45.
而且在美國，有半數婦女到45嵗時都會有意外懷孕的經歷。
If, however, you've missed a dose — or several doses — during a cycle, you might be at higher risk of unintended pregnancy during that cycle.
如果漏服了一個周期內的一片或者數片葯物，那麽該周期內非意願性妊娠的風險將增加。
For example, averting unintended pregnancy and reducing unmet need for family planning are key interventions in improving maternal health and reducing perinatal death.
例如，避免意外懷孕和減少對計劃生育未滿足的需求是促進母親健康和減少圍産期死亡的重要乾預措施。

"We found that easier access to emergency contraception did help women use the pills more quickly when it was needed, and they used it more often, but despite that increased use and faster use, it didn't reduce rates of unintended pregnancy."