Brief Coping Orientation to Problems Experienced (COPE) - This 28-item validated scale derived from a previously published measure showing reliability and convergent validity with several established coping measures will be used to identify coping strategies consistent with cognitive-behavioral skills. The scale assesses frequency with which a person uses coping strategies rated on a scale of 1-4. The higher the number indicates a higher frequency.

Postpartum Partner Support Scale (PPSS) - The PPSS is a 24-item self-report instrument to assess partner postpartum-specific support. Items are rated on a 4-point Likert-type scale (responses from 1-4) to produce a total score ranging from 24 to 96, with higher scores indicating higher levels of postpartum partner support.

Social Provisions Checklist - This is a 30-item measure of perceived support from the co-parent. The scale covers six provisions of support: guidance, reliable alliance, reassurance of worth, attachment, social integration, and opportunity for nurturance. All items are rated on a 5-point scale for a total score of between 30-120, with higher scores indicating higher levels of support.

Postpartum Partner Support Scale (PPSS) - The PPSS is a 24-item self-report instrument to assess partner postpartum-specific support. Items are rated on a 4-point Likert-type scale (responses from 1-4) to produce a total score ranging from 24 to 96, with higher scores indicating higher levels of postpartum partner support.

Social Provisions Checklist - This is a 30-item measure of perceived support from the co-parent. The scale covers six provisions of support: guidance, reliable alliance, reassurance of worth, attachment, social integration, and opportunity for nurturance. All items are rated on a 5-point scale for a total score of between 30-120, with higher scores indicating higher levels of support.

A small amount (15-30 mg) of hair from the posterior vertex of the head will be collected. Hair strands will then be cut into 3 cm segments, which based on human scalp hair grows at approximately 1 cm per month, so each of the 3 cm samples will index cortisol output during the three trimesters of pregnancy. If hair is less than 9 cm long, the analysis will include only the number of 3 cm segments available. The wash procedure and steroid extraction will be undertaken using high performance liquid chromatography-mass spectrometry. Additionally, mothers will be asked about their hair histories to use as covariates in analysis along with hair sample. Hair histories include questions related to hair color, salon treatments, sunlight exposure, use of hair products, medications, creams, and hair pieces, style and indoor tanning habits.

Pittsburgh Sleep Quality Index (PSQI) - This scale assesses sleep quality, which is a covariate of hair cortisol and mood. The PSQI is well-established questionnaire for assessing sleep quality, duration and disturbances. Items range from 0-3, with high scores indicating greater sleep disturbance.

Edinburgh Postnatal Depression Scale (EPDS) - The EPDS is a well-validated 10-item self-report depression screening tool, in which endorsement of each item is based on how women feel during the previous 7 days. Possible scores range from 0 to 30, with high scores reflecting more depressive symptoms.

Edinburgh Postnatal Depression Scale (EPDS) - The EPDS is a well-validated 10-item self-report depression screening tool, in which endorsement of each item is based on how women feel during the previous 7 days. Possible scores range from 0 to 30, with high scores reflecting more depressive symptoms.

Edinburgh Postnatal Depression Scale (EPDS) - The EPDS is a well-validated 10-item self-report depression screening tool, in which endorsement of each item is based on how women feel during the previous 7 days. Possible scores range from 0 to 30, with high scores reflecting more depressive symptoms.

Depression Anxiety and Stress Scales (DASS-21) - The DASS-21 will be used to measure the unique symptoms of each state. There is normative data for the scale. Scores range from 0-63, with higher scores indicating more severe depression, anxiety, and stress.

Depression Anxiety and Stress Scales (DASS-21) - The DASS-21 will be used to measure the unique symptoms of each state. There is normative data for the scale. Scores range from 0-63, with higher scores indicating more severe depression, anxiety, and stress.

Depression Anxiety and Stress Scales (DASS-21) - The DASS-21 will be used to measure the unique symptoms of each state. There is normative data for the scale. Scores range from 0-63, with higher scores indicating more severe depression, anxiety, and stress.

Maternal Mood Screener (Munoz, 1988) - The mood screener questions were adapted from the Diagnostic Interview Schedule and assesses lifetime and current major depressive episode. Positive endorsement of 5 out of 9 depression symptoms present for at least two weeks screens positive for possible major depressive episode. The screener is a self-report checklist using the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) criteria that has shown high concordance with the Structured Clinical Interview for DSM-IV (SCID-IV), the gold standard diagnostic interview for depression.

Maternal Mood Screener (Munoz, 1988) - The mood screener questions were adapted from the Diagnostic Interview Schedule and assesses lifetime and current major depressive episode. Positive endorsement of 5 out of 9 depression symptoms present for at least two weeks screens positive for possible major depressive episode. The screener is a self-report checklist using the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) criteria that has shown high concordance with the Structured Clinical Interview for DSM-IV (SCID-IV), the gold standard diagnostic interview for depression.

Maternal Mood Screener (Munoz, 1988) - The mood screener questions were adapted from the Diagnostic Interview Schedule and assesses lifetime and current major depressive episode. Positive endorsement of 5 out of 9 depression symptoms present for at least two weeks screens positive for possible major depressive episode. The screener is a self-report checklist using DSM-IV criteria that has shown high concordance with the SCID-IV, the gold standard diagnostic interview for depression.

Happy Healthy Loved Acceptability Scale - The investigators developed a list of 11 questions designed to assess participant satisfaction with the program on a scale of 1 (strongly disagree) to 5 (strongly agree). Open ended responses for participants to suggest alterations to the program are included as well.

Adherence will be measured by the percentage of text messages recorded as opened by participants, as well as the percentage of weekly breastfeeding check-in texts participants respond to with a yes, or no response.