I'm glad you asked this as I was going to post something similar tonight. I lost a tiny bit of something the other night, about a 20c piece worth, then some about the size of a 5c piece the next morning.
I've been thinking about it ever since. Instinct tells me it could be some of my plug, but I'm just paying a bit more attention. I have no idea what it means or if I should be worried or not. That night I did have some horrible back pain, but nothing since, so I'm assuming all is ok.
Alan - should I worry? I feel like all is ok. I'm just paranoid. If I do lose it, is it inevetable that labour could happen early, or is there still the strong possibility that I'll go to term, or more, as I have with my other 3?