BACKGROUND Knowing the approximate number of women of reproductive age (ie, 15-49 years) who are pregnant at a point in time in the United States can aid in emergency preparedness resource allocation. The Centers for Disease Control and Prevention (CDC) released a pregnancy estimator toolkit in 2012, which could be used to estimate the number of pregnant people in a geographic area at a point in time. This original toolkit did not account for pregnancy losses before 20 weeks of gestation; however, an updated toolkit released by the CDC in May 2024 uses a ratio of live births to estimate the number of pregnancy losses before 20 weeks at a point in time for improved estimation of total pregnant people at a point in time. INSTRUMENT We used the CDC's updated reproductive health tool, "Estimating the Number of Pregnant Women in a Geographic Area." EXPERIENCE Using publicly available data for 2020, we gathered the necessary input values, including total births, fetal deaths, and induced abortions, and applied the equation available in the CDC toolkit to estimate the number of pregnant people in the United States at any point in time in 2020. CONCLUSION In 2020, there were 75,582,028 women of reproductive age in the United States, and we estimate that approximately 2,962,052 or 3.9% of women of reproductive age were pregnant at any point in time in the United States.

中文翻译：

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一种估计美国孕妇人数的新工具。


背景 了解美国某个时间点怀孕的育龄妇女 （即 15-49 岁） 的大致人数有助于应急准备资源分配。美国疾病控制和预防中心 （CDC） 于 2012 年发布了一个怀孕估算器工具包，可用于估计某个地理区域在某个时间点的孕妇人数。这个原始工具包没有考虑妊娠 20 周前的妊娠丢失;然而，CDC 于 2024 年 5 月发布的更新工具包使用活产率来估计某个时间点 20 周前的流产次数，以改进对某个时间点孕妇总数的估计。工具 我们使用了 CDC 更新的生殖健康工具“估计地理区域内的孕妇人数”。经验 使用 2020 年的公开数据，我们收集了必要的输入值，包括总出生数、胎儿死亡率和人工流产，并应用 CDC 工具包中提供的方程来估计 2020 年任何时间点美国的孕妇人数。结论 2020 年，美国有 75,582,028 名育龄妇女，我们估计美国在任何时间点约有 2,962,052 名或 3.9% 的育龄妇女怀孕。