As your baby puts on the pounds inside your uterus during pregnancy, your pelvic floor muscles have to support more and more weight. Sometimes, they’re not fully up to the job.
If you notice occasional urine leaking — when you cough, sneeze or try to go on a jog — that’s because your over-burdened pelvic floor muscles aren’t able to fully support your bladder and internal organs the way they usually do.
Research has suggested that women who do pelvic floor exercises during pregnancy may have a shorter active phase of labor than other women.