What is a pregnancy sweep? A pregnancy sweep is what your midwife or doctor will call a membrane sweep or a cervical sweep.

The health care provider puts her or his finger into the cervix -- the mouth of the uterus -- and uses the finger to gently separate the bag of water from the side of the uterus near the cervix.

They may be shaped like a finger, bulb, or thin stem. They can range in size from a few millimeters to several centimeters long. These bumps inside your cervix are pretty common. They’re most ...