Mucus plug?

Cetia • 22 || College; Business || Happily Engaged || Lovemybaby ?
What does it look like when you lose it? Can you lose bits and pieces of it?! I wanna know what to expect and when to expect it. I'm 30 weeks! I think she is gonna come early due to me measuring 3 weeks ahead & just because it's a feeling I've got. Lol