Not trying to scare you, b/c spotting is fairly normal. Still, it's a reason to be concerned & to talk to your doctor. I started spotting at 6 weeks & immediately went to the hospital. They sent me home with information about miscarrying. Well, the bleeding continued for 10 days! I kept going back to the doctor & they kept going "I dunno". For 10 more days after THAT I had tissue loss.
Finally they found out that I had what's called a subchorionic hematoma- basically, there was an area on the wall of my uterus under the placenta that was bleeding. If the bleeding didn't heal, the placenta could have been damaged and separated from the wall, causing a miscarriage. So they put me on bedrest. Everything healed up just fine!
As I said before, I'm not trying to scare you, just trying to share my experience. If you feel like something's not right, keep going back to the doctor until they figure it out, and/or until you're satisfied.
at 4:46 AM on Oct. 18, 2009