Stress incontinence, which involves the loss of urine, is a symptom of pregnancy, according to WebMD. As of 2015, there is no credible medical evidence that bowel incontinence is also symptom of pregnancy, but experts believe that this condition does occur in women during pregnancy, states Medical News Today.
Stress incontinence is the main kind of incontinence experienced during pregnancy, and occurs when the bladder sphincter functions improperly, causing an involuntary loss of urine, explains WebMD. The uterus expands and puts pressure on the bladder, which overwhelms the muscles in the bladder sphincter, causing urine to leak. This condition may continue even after the pregnancy, and some women may not experience any bladder problems until they are 40 years of age.