Thank you for asking your query at DoctorSpring.
The symptom pattern you are experiencing is suggestive of Pregnancy, but it is NOT specific at all. That means it can occur without pregnancy (for example from a hormonal fluctuation ) .
And yes, the Pregnancy test might be bit early. Sperm can be alive in your body for few days. And ovulation can be delayed beyond 8th of November. Putting these possibilities together there is a chance that the implantation happened late. So HCG rise is yet happen. I recommend a repeat testing after 1 week (atleast 5 days) from now. Meanwhile avoid alcohol and smoking. You can take a Folic Acid supplementation also
Hope this helps