Pregnancy can result in back pain, which can linger for a time after the delivery. Three possible causes for the back pain might include:

1. Extra weight is obvious. This is putting more strain on the back, and often women keep some of this extra weight even after the delivery, putting a chronic strain on the back.

2. The center of gravity in a pregnant woman moves forward as the uterus grows in size. Unconsciously or not, the woman will alter her gait and posture to adjust to these changes. ...