The mucus plug is a protective layer made up of sticky mucus that seals the cervix (the opening of the uterus). The cervical canal produces this plug to protect your womb and unborn baby from bacteria ...
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What the mucus plug really does throughout pregnancy
Some changes in your body during pregnancy are not obvious, as they quietly happen in the background. They may show up just at the right time. Your body forms a mucus plug to protect your baby.
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