Yeah, I remember everything feeling wierd down there. Sooooo many freaky changes happen to your bod during pg!!

I wouldn't be worried about the discharge. If its really enough plug to be worried about, you will know it, its pretty hard to miss. And if you were going into premature labour, I really think you would know it too- BH/contractions and probably bleeding.

I KNOW how scary it is, I flipped out every ten minutes about something, but it always comforted me to know that major thing (like prem labour) show up in major ways and that generally strange smaller symptoms were just more wierd pregnancy stuff.

Be wary of googling your symptoms too much. I can't tell you how many times I freaked myself out.