Hello,
These can be the symptoms of pregnancy. If you miss your periods then you can test 1 week- 10 days after you miss your periods or you can test for pregnancy by a highly sensitive pregnancy test 10 days post ovulation with a sensitive ( 20 - 25 mIU ) pregnancy test. Also I would suggest you to get your serum HCG levels estimated since this is more specific than urine for pregnancy tests. The HCG (it is a hormone) levels rise only in pregnancy and its presence will confirm the status of your pregnancy.
I hope it helps. It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
I have been having unprotected sex since the day after my preriod which was 30/09/2011 to 17/10/2011.
It is impossible to tell if you're pregnant or not right now. How long has it been since you have had unprotected sex? You might not have waited long enough for the pregnancy test to be accurate. If you haven't already missed a period, wait for the missed period to rely on pregnancy test results.