There are significant gaps in our understanding of how the experience of an unintended pregnancy affects subsequent contraceptive behavior. Our objective was to explore how three measures of pregnancy preferences—measuring timing-based intentions, emotional orientation, and planning status—were related to the uptake of postpartum family planning within one year after birth. Additionally, we tested whether the relationship between each measure and postpartum family planning uptake differs by parity, a key determinant of fertility preference. Adjusted hazards regression results show that the timing-based measure, specifically having a mistimed pregnancy, and the emotional response measure, specifically being unhappy, were associated with contraceptive uptake in the extended postpartum period, while those related to pregnancy planning, as measured by an adapted London Measure of Unplanned Pregnancy, were not. This effect differed by parity; high parity women were consistently the least likely to use contraception in the postpartum period, but the effect of experiencing an unwanted pregnancy or having a mixed reaction to a pregnancy was significantly stronger among high parity compared to low parity women. Greater attention to the entirety of women's responses to unanticipated pregnancies is needed to fully understand the influence of unintended pregnancy on health behaviors and outcomes for women and their children.

中文翻译：

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使用埃塞俄比亚 PMA 的纵向数据探索怀孕偏好的多种衡量标准及其与产后避孕药具服用率的关系

对于意外怀孕的经历如何影响随后的避孕行为，我们的理解存在重大差距。我们的目标是探讨怀孕偏好的三种衡量标准——衡量基于时间的意图、情绪取向和计划状态——与出生后一年内对产后计划生育的接受程度之间的关系。此外，我们还测试了每项措施与产后计划生育接受率之间的关系是否因胎次而异，胎次是生育偏好的关键决定因素。调整后的风险回归结果表明，基于时间的测量（特别是不合时宜的怀孕）和情绪反应测量（特别是不快乐）与延长产后时期的避孕措施有关，而与怀孕计划相关的测量（通过采用伦敦意外怀孕措施，但没有。这种效应因奇偶性而异。高胎次女性在产后期间使用避孕措施的可能性始终最低，但与低胎次女性相比，高胎次女性经历意外怀孕或对怀孕产生混合反应的影响明显更强。需要更多地关注妇女对意外怀孕的整体反应，以充分了解意外怀孕对妇女及其子女的健康行为和结果的影响。