I had what I thought was my bloody show on the Sunday, but I think it ended up just being the result of an internal.. It was like dark red period-type blood, with little clots. But then the next day I got what was definitely more of a show - pink-tinged mucus. After this I didn't go into labour until the following Sunday... I feel like that's not so common though! May just be that I had the internal and it stirred everything inside. Have you had one lately..? If not, could be a good sign!
I lost a LOT more of it when I was actually in labour too.