Abortion After Pregnancy Occurrence with Contraceptive Use Among Veterans.

Objective: Many people report becoming pregnant while using contraception. Understanding more about this phenomenon may provide insight into pregnant people's responses to and healthcare needs for these pregnancies. This study explores the outcome (e.g., birth, miscarriage, abortion) of pregnancies among Veterans in which conception occurred in the month of contraceptive use. Study Design: We used data from the Examining Contraceptive Use and Unmet Need Study, a telephone-based survey conducted in 2014-2016 of women Veterans (n = 2302) ages 18-44 receiving primary care from the Veterans Health Administration. For each pregnancy, we estimated the relationship between occurrence in the month of contraceptive use and the outcome of the pregnancy using multinomial logistic regression, controlling for relevant demographic, clinical, and military factors and clustering of pregnancies from the same Veteran. Results: The study included 4436 pregnancies from 1689 Veterans. Most participants were ≥30 years of age (n = 1445, 85.6%), identified as non-Hispanic white (n = 824, 51.6%), and lived in the Southern United States (n = 994, 55.6%). Nearly 60% (n = 1007) of Veterans who had ever been pregnant reported experiencing a pregnancy in the month of contraceptive use; a majority of those pregnancies (n = 1354, 80.9%) were described as unintended. In adjusted models, pregnancies occurring in the month of contraceptive use were significantly more likely to end in abortion (aOR: 1.76, 95% CI: 1.42-2.18) than live birth. Conclusions: Pregnancy while using contraception is common among Veterans; these pregnancies are more likely to end in abortion than live birth. Given widespread restrictions to reproductive health services across much of the United States, ensuring Veterans' access to comprehensive care, including abortion, is critical to supporting reproductive autonomy and whole health.