If by chance you have had unprotected sex during the time of your ovulation, Which would be approximately 2 weeks after the "first day" of your period...not the last day, then it is entirely possible that you might be pregnant. You didn't mention how late your period is, but you do seem to be experiencing some of the signs and symptoms of early pregnancy. Unfortunately though, some of the same signs, are also indicators that your period is imminent. What you need to do at this point, is do a urine pregnancy test using first morning urine - as this will contain the highest concentration of pregnancy hormone (HCG)...which is what triggers a positive test result. If after the test, you continue with a neg. result, and you are anxious to find out now...you can go to see your doc for a serum pregnancy test that is more accurate at an earlier time. Also though, you must know that there are several reasons for you to miss a period...ie: stress, rapid weight gain or loss, certain medications or medical problems. If you continue to feel pregnant listen to your body, and please see your OBGYN to rule out any pending or pre existing medical problems that you might not been aware of. Some of the early signs/symptoms are...morning sickness (that can show up at any time), heightened sense of smell, fatigue ( wanting to sleep a lot), frequent urination, tenderness in your breasts, and bloating of the abdomen, cravings.... So it is entirely a possibility, and the sooner you see your doc, the sooner you can put all of this to rest once and for all...either you are, or you're not...but at least you will know. It is also fairly common for a woman to have a light period or spotting for the first few months until the HCG is up to a notable level, where it needs to be. Most of the time a woman's body is the best indicator of all if you listen to it. If you are wanting our psychic's advice, I will contact her...if she doesn't see this post first, and have her talk with you.
Good Luck to you, and thank you for everything.