I had a tubal ligation august of 2006. my last period was October 4, 2008. I have a 30 day cycle, always regular, I have never missed except when I was pregnant. I was expecting to start Nov. 3rd 2008. That day I was really nauseated and so I haven't started I went and bought a pregnancy test. It came back faint positive, I even asked someone else to take a look to make sure I just wasn't seeing things, they also saw the faint blue line. So I called the Dr. went in and took a urine test and a blood test, both were negative. Now it is Nov. 7th still feeling crummy, tired, nauseated, headaches, slight pressure in my lower abdomen, constipation. No period as of yet. Can I still be pregnant. I have not taken another test, I am going to do another one Saturday Nov. 8th and go back to the Dr. on Tuesday Nov 11th. Can you give me your opinion. What do you think, can I be pregnant?? What other reasons would I miss my period. I am not stresses or have any other health problems I am also a very healthy weight