Many women will sometimes pass a large plug of mucus (and maybe some blood) at some point during cervical dilation. As the cervix dilates and thins, the mucus buildup that was there in the cervical canal can come out. It has also been called “the bloody show” if its blood tinged. Losing this plug doesn’t actually have any diagnostic or predictive value for us as doctors. Many people think “it’s go time” when they lose it or that they are going to progress faster after its expulsion. Unfortunately, women can start to dilate a small amount early and lose it even weeks before they actually go into labor. Sorry to disappoint you, but the baby is going to come when the baby is going to come.