What Causes Delayed Periods Along With Heartburn And Fatigue?

HI MY NAME IS EREKA AND I HAD MY TUBES CLAMPED BACK IN 2012 ITS ACTUALLY BEEN 3 YEARS NOW AND NOW TODAY I AM 2 MONTHS AND 2 DAYS LATE WITH MY PERIOD IVE BEEN TIRED AND LAZY MAJOR HEARTBURN AND FATIGUE I TOOK A AT HOME TEST BUT SAYS NEGATIVE I WAS TOLD DOCTORS TEST ARE MORE ACCURATE