Me and my boyfriend had protected sex on september 9th 2012 and i was suppose to get my period september 10th, before this time we had not had sex since april 5th 2012. I am now 10 days late and extremely worried. Im only 17 and i wouldnt want a baby at this time in my life. I did take a pregnancy test when was 7 days late and it came back negative. Idk whats going on, someone help !!? What are the chances of me really being pregnant ?