I am 30 years old I have had irregular periods on and off for about 8 years. recently I haven't had a period for about 5 months. But my breasts have been tender for about 2 weeks and i have been spotting for about 10 days. I also have severe lower abdominal cramping. I always think that maybe I'm pregnant, but I do have irregular periods, and every time i take a test it comes out negative. any feedback would be deeply appreciated.