Physical Activity and Sedentary Behavior During Pregnancy

Our main objective is to evaluate the intervention that best enables women's adherence to physical activity (PA). Our hypothesis is that identifying types of interventions suitable for pregnant women (in-person PA sessions, videoconferences or mixed format) could help improve their PA level and simultaneously reduce their sedentary behavior (SB).

Inclusion Criteria: * Pregnant women of more of 18 years and who are being monitored for pregnancy in the Clermont-Ferrand metropolitan area, * Planned to give birth in a maternity unit localized in Clermont-Ferrand metropolitan area (CHU Estaing or Clinique de la Chataigneraie), * Agreeing to be randomized, to follow the physical activity program offered in the Clermont-Ferrand metropolitan area, and to follow up as part of the study, * Able to give informed consent to participate in the research, * Affiliated to a social security scheme * And between 14+0d and 21+6d weeks of gestation. Non inclusion Criteria: * Women under guardianship, curators, deprived of liberty or under court protection, * With a history of recurrent miscarriage, * Presenting a multiple pregnancy, * Hemoglobinemia \