This is a prospective study that will be conducted in pregnant women with a BMI ≥ 25 kg/m2, aged from 18 to 42 years. Participation in the program will be offered between 12 and 22 + 6 weeks of pregnancy. Women with a history of more than 2 miscarriages, severe heart disease (arrhythmia, previous myocardial infarction), bleeding in the first trimester, multiple pregnancy, unstable thyroid disease, hypertension, diabetes, or any other medical conditions that can interfere with the practice of physical activity during pregnancy will not be allowed to participate in the program for medical reasons. The participants will sign an informed consent. The intervention will be an educational program called "Eat well, move well for to the baby's health," including nutritional counselling and physical activity exercises. The control group will receive usual care as a simple information. The intervention will take place between 24 and 36 weeks of pregnancy. Women will be evaluated before (20-24 weeks gestation (SA)), during the intervention (32-34 SA), and finally 8 weeks after childbirth during the postnatal visit. All patients with benefit from obstetric monitoring according with the French recommendations with a monthly consultation and ultrasonography exams at 22 and 32 wks.