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Signs of labor: Know what to expect

Increase in vaginal discharge

During pregnancy, a thick plug of mucus blocks the cervical opening to prevent bacteria from entering the uterus. During the late third trimester, this plug might be pushed into your vagina. You might notice an increase in vaginal discharge that's clear, pink or slightly bloody. This might happen several days before labor begins or at the start of labor.

If vaginal bleeding is as heavy as a normal menstrual period, however, contact your health care provider immediately. Heavy vaginal bleeding could be a sign of a problem.