Targeting Pregnancy-related Weight Gain to Reduce Disparities in Obesity

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