Hey, I had the same problem, you need to see a doctor, especially since its this late in the pregnancy. I was diagnosed with "Implantation bleeding" at about 9 weeks. I bled for about 5 weeks total. Then they put me on an antibiotic and it stopped, so I stopped taking the antibiotic. Don't ever do that, because I did that I had to be hospitalized for a couple of days, due to a kidney infection. But definitely see a doctor, it might or might not be the same thing I had, but take all the antibiotics they give you no matter what, and if they make you dizzy tell your doctor, maybe he can give you something else that won't make you dizzy. Best of luck.
at 10:41 AM on Jan. 28, 2009