I AM 34 YEARS I HAD MY TUBES TIED 6 YEARS AGO. I HAVE ALWAYS HAD NORMAL PERIODS UNTIL 2 MONTHS AGO. MY LAST PERIOD WAS IN DECEMBER IN JANUARY I WAS WEEK LATE, WHEN I FINALLY THOUGHT I WAS STARTING IT TURNED OUT TO BE SPOTTING FOR A DAY. I HAVE HAD SPOTTING ABOUT ONCE A WEEK SINCE. NOW I WAS WAITING TO START AGAIN THIS MONTH AND STILL JUST A SPOT HERE AND THERE. TOOK TWO PREG TESTS LAST MONTH BUT NEG. PLEASE HELP