This data collection is comprised of responses from two sets of survey questionnaires, the basic Current Population Survey (CPS) and a survey administered as a supplement to the June 2010 CPS questionnaire on the topic of Fertility.

The CPS, administered monthly, collects labor force data about the civilian noninstitutional population living in the United States. Moreover, the CPS provides current estimates of the economic status and activities of this population which includes estimates of total employment (both farm and nonfarm), nonfarm self-employed persons, domestics, and unpaid helpers in nonfarm family enterprises, wage and salaried employees, and estimates of total unemployment. Data from the CPS are provided for the week prior to the administration of the survey.

All females aged 15-44 years that were eligible for the basic CPS survey were also eligible for the supplement survey, as applicable. Self or proxy responses were allowed for the supplement, that is, a single respondent could provide answers for themselves or provide answers for all eligible household members, provided the respondent him/herself was a household member 15 years of age or older. Questions determining the number of live births, date of the last child's birth, and the age of women (in months) at the time of the birth of their last child were asked of the eligible women.

Demographic variables include age, sex, race, Hispanic origin, marital status, veteran status, educational background, occupation, industry, and income.