Pregnancies: Pregnancies are comprised of live births, abortions and miscarriages. Abortions refer to those that are induced, while miscarriages refer to spontaneous fetal losses after 5 weeks of gestation, including stillbirths.

Unmet need: Women who want to stop or delay childbearing but are not using any method of contraception are defined as having an unmet need for contraception.

Intended pregnancy: We classify a pregnancy as intended if a woman reports that at or just before the time of conception, she wanted to become pregnant.

Unintended pregnancy: The remainder of pregnancies are classified as unintended. Theoretically, these roughly correspond to the pregnancies which occur to women who are using or who have an unmet need for contraception. However, pregnancy intentions can be fluid and fall along a spectrum, such that the available family planning indicators may not perfectly align with measures of pregnancy intentions.

Unintended births: We refer to live births that follow unintended pregnancies as unintended births.

Marriage: Married women include those living in a cohabiting union. This is consistent with the definition employed by the DHS and by the UNPD [19, 20].