If your mucus plug comes out but labor doesn't start, your body will replace it with more mucus. At some point after you lose your mucus plug, you may start to notice cramping, contractions ...

The mucus plug is a thick collection of mucus that seals the opening of the cervix. This stops bacteria from entering your uterus, but once labor nears, this plug loosens and drops out.

The mucus plug prevents sources of infections and bacteria from reaching your baby. Several days before labor or at the start of labor, your cervix begins to open. The mucus plug is then ...