Healthy4Baby: Preventing Postpartum Weight Retention Among Low-Income, Black Women

Inclusion Criteria: 1. Pregnant African-American women at least 18 years of age 2. BMI at recruitment between 25.0-44.9 kg/m2 3. Singleton pregnancy 4. Gestational age of ≤ 20 weeks as determined by last menstrual period 5. Plan to carry the pregnancy to term and keep the baby 6. Own a cell phone with a text messaging plan 7. Member of Facebook social networking site 8. Able to participate in physical activity 9. Participants must be willing to comply with all study-related procedures Exclusion Criteria: 1. BMI ≤ 24.9 or ≥ 45.0 2. Uncontrolled hypertension (systolic blood pressure \> 160 or diastolic blood pressure \> 95 mmHg). Participants with controlled hypertension on medication for at least three months are allowable. 3. Known atherosclerotic cardiovascular disease 4. Known congestive heart failure 5. Known diabetes mellitus (type 1 or type 2) 6. Uncontrolled thyroid disease. Participants with controlled thyroid disease on medication for at least three months are allowable. 7. Known cancer 8. Any major active rheumatologic, pulmonary, hepatic, dermatologic disease or inflammatory condition requiring steroids or immune modulating medications 9. History of testing HIV positive 10. Current smoker or tobacco user 11. Current or recent history (past 6 months) of drug or alcohol abuse or dependence 12. Participation in any weight control or investigational drug study within 6 weeks of screening 13. Serious or unstable medical or psychological conditions that, in the opinion of the investigator, would compromise the subject's safety for successful study participation 14. Gastrointestinal Disorders (gallbladder disease, Crohn's disease, etc) 15. Previous weight loss surgery 16. History of bulimia or anorexia