You don’t want to wear the pregnancy back brace for an extended period of time so it replaces the work of your core muscles. You only want to reinforce and support these muscles. You can wear it for a couple of hours at a time beginning at around 20 weeks. This will provide much-needed back support and enable you to keep a good posture during daily activities and exercise. Some women continue to wear their pregnancy back brace into the postpartum weeks as the core muscles begin to heal and come back together after delivery. *If you have blood pressure or circulation issues, a pregnancy back brace may not be a good option. It’s a good idea to check with your healthcare provider first.