JodyC,
I know it´s hard...but try not to worry about it. It is common to spot when you´re pg.
when I m/c for the first time, I had brown spotting and after doc checked that my HCG levels were not doubling, I had to take cytotec to get rif of any pg tissues...

on my second m/c I had some brown spotting one day, and the next day I got my period...one thing that I noticed was that on this second day, my bbs were not sore anymore and my nipples were not hard anymore..
Hopefully, everything will be fine! GOOD LUCK!!
Minouche