Despite the heightened interest in human reproduction and the significant implications of premarital pregnancy for children’s health, strikingly little research has paid attention to the determinants or premarital pregnancy compared with more conventional fertility behavior. To fill this gap in the literature, this study drew data from the Korean Longitudinal Survey of Women and Families (N = 4333) and estimated discrete-time event history models using multinomial logistic regressions. Results from descriptive analyses indicate that the share of premarital pregnancy among all births registered increased roughly two and a half times between 1997 and 2014. Also, while premarital conception increased in women at all educational levels, high school graduates and those with less than an elementary school education showed the largest increase in the share of premarital pregnancy. The results from multivariate models suggest that the characteristics of the women’s family of origin, such as being the firstborn child, the mother’s education, their living arrangements during adolescence, and their region of residence have enduring effects on both premarital and post-martial pregnancy. Women’s achieved socioeconomic status, however, showed a weaker effect on the odds of premarital pregnancy than expected. The predicted probabilities of premarital pregnancy by age at first marriage across birth cohorts born between the 1940s and 1970s suggest that premarital pregnancy is particularly pronounced among women who marry in their early twenties. Moreover, at a given age at first marriage, the predicted probability of premarital pregnancy monotonically increases in more recent birth cohorts, suggesting that bridal pregnancy is increasingly prevalent among modern Korean women.

中文翻译：

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婚前受孕的趋势和决定因素：韩国的爱情

尽管人们对人类生殖的兴趣日益浓厚，并且婚前怀孕对儿童健康的重大影响，但与更传统的生育行为相比，很少有研究关注决定因素或婚前怀孕。为了填补文献中的这一空白，本研究从韩国妇女和家庭纵向调查 (N = 4333) 中提取数据，并使用多项逻辑回归估计离散时间事件历史模型。描述性分析的结果表明，在 1997 年至 2014 年期间，所有登记出生的婚前怀孕的比例增加了大约两倍半。 此外，虽然在所有教育水平的妇女中婚前受孕都有所增加，高中毕业生和小学以下学历的人的婚前怀孕比例增幅最大。多变量模型的结果表明，女性原籍家庭的特征，如头胎、母亲的教育、青春期的生活安排和居住地区，对婚前和战后怀孕都有持久的影响。然而，女性获得的社会经济地位对婚前怀孕几率的影响比预期的要弱。在 1940 年代至 1970 年代之间出生的出生队列中，按初婚年龄预测的婚前怀孕概率表明，婚前怀孕在 20 岁出头结婚的女性中尤为明显。此外，在初婚的特定年龄，