Hi I have had uprotected sex with my boyfriend last month my period came on oct 6-10 and I had sex on the 11 on the 15 and 16. I use to be on birth control pills i got off those in august. My period came on early it came on nov 2 when it came i wasnt heavy like im always am i was only spotting I never spotted before. I stop spotting nov 6. during this time and after my breast have been full and hurt a littlei have  headaches and cramps and my back hurts. I took a pregnancy test friday it was neg went to see a doctor yesterday that test was negative also. Could I still be pregnant and tested to early