What are two signs that birth process is starting?

Many women experience some diarrhea just prior to labor starting. Another sign is a sudden burst of energy where the woman will finish preparing for the arrival of a baby, called nesting.

Physical signs of early labor can include "bloody show", loss of the mucus plug, rupturing of the amniotic sack, nausea, vomiting, low back ache, cramps or increase in Braxton Hicks type contractions.