I JUST GOT OF THE BITRH CONTROL PILLS IN SEPTEMBR AND I BEEN HAVING UNPROTECTED SEX WITH MY BOY FRIEND EVER SINCE AND ITS NOVEMBER, I'VE BEEN GETTING BACK PAIN AND BREAST TENDERNESS AND ALSO MY BREAST FEEL SO HEAVY I WENT TO THE DOCTOR 3 TIMES AND TOOK A HOME PREGNANCY TEST AND ALL WAS NEGAITVE IS IT A POSSIBLE CHANCES Could I be pregnant?