Sleep-related impairment will be measured by the Patient-Reported Outcomes Measurement Information System (PROMIS) Sleep-Related Impairment - Short Form 8a.

The Sleep-Related Impairment instrument is a self-reported tool used to document perceived overall sleep-related impairment (or sleep-wake function) over the past seven days. The PROMIS method of scoring uses responses to each item for each participant. For most PROMIS instruments, a score of 50 is the average for the United States general population with a standard deviation of 10 because calibration testing was performed on a large sample of the general population.

Depression symptoms will be measured by the Edinburgh Postnatal Depression Scale (EPDS). The 10-question Edinburgh Postnatal Depression Scale (EPDS) is used to identify patients at risk for perinatal depression. Mothers who score above 13 are likely to be suffering from a depressive illness of varying severity.

Autonomous motivation will be measured using the Autonomous Motivation and External Regulation scales of the Treatment Self-Regulation Questionnaire (10 items, range 7 - 70, Cronbach alpha 0.90). This is a self administered questionnaire with a higher score indicating higher emotion regulation strategy.

Completion of recommended postpartum care will be assessed by patient health record review.

Contraceptive Use will be measured using an item from the self administered PRAMS questionnaire.

Are you or your husband or partner doing anything now to keep from getting pregnant? No / Yes (if Yes proceed to next)

What kind of birth control are you or your husband using now to keep from getting pregnant?

PRAMS is an ongoing, site-specific, population-based surveillance system designed to identify groups of women and infants at high risk for health problems, to monitor changes in health status, and to measure progress towards goals in improving the health of mothers and infants.

Tobacco use will be assessed by asking participants "Have you smoked any cigarettes in the past 30 days?"

Multivitamin use will be assessed by asking participants "Are you currently taking a multivitamin?"

Autonomy support will be measured with the self regulated short form of the Health Care Climate Questionnaire (6 items, range 6 - 42, Cronbach alpha 0.82). Scores on the short form 6-item version are calculated by averaging the individual item scores. Higher average scores represent a higher level of perceived autonomy support.