Discharge? or Mucus Plug?

hello mga mommies 39weeks and 3days po ako ngayon, pagligo kpo chineck kpo ung undies ko may ganyan pong lumabas sakin, askin lng po ako if natural discharge lang po ba yan ohh ung tinatawag npo yang mucus plug? #advicepls #1stimemom #pleasehelp #firstbaby