Hello I am 17 years old and I have most of the pregnancy symptoms like frequent urination and headaches and I don't feel comfortable sleeping on my stomach. My boyfriend and I had unprotected sex on 8.16.2012 and I took the test 4 days later and it was negative but I took the test again 8.30.2012 and it was a light negative. Is there still a possibility that I could be pregnant or is this all in my head? Please Help!

Check back around 9/20 or so. It is too early to be having "signs" and too early for the test to show correctly normally.

So wait about two or three weeks and if no period, do the tests then, with the first urine of the morning.