What can your mucus plug look like?

Currently 32 weeks pregnant and about a week ago I went to the toilet and noticed what I thought was a tiny little bit of my mucus plug and about a week later after that i seen the same again, I’ve heard descriptions about it but want to know if it has to be all at once or can it just be very, very small bits of it like I’ve had? Also does it mean labour soon ?? Thanks 😅xx