HI THERE I AM 18 YEARS OLD ON BIRTH CONTROL (PARAGUARD) FOR ABOUT A MONTH NOW AND LATELY I HAVE BEEN FEELING KINDA BLOATED WITH STOMACH PAIN AND I  HAVE REALLY BAD LOWER BACK PAIN THATS UNBERABLE I HAVE METAL TASTING IN MY MOUTH AS WELL AND A HEADACHE HERE AND THERE. I HAVE LOOKED ON LINE AND THESE ARE SIGNS OF PREGNANCY ND I BOUGHT A HOME PREGNANCY TEST BUT IT CAME OUT NEGATIVE. AND IM ON MY PERIOD NOW, DOES ANYONE THINK I MAY BE PREGNANT EVEN THOUGH ON BIRTHCONTROL AND I GET MY PERIOD? DO YOU THINK I SHOULD GO CHECK AT THE DOCOTRS? ANY HELP WOULD BE APPRECIATED THANK YOU!!