since this past july i've been having some very unusual periods, i had one in july that lasted 3 days. my next period was a week early and the period after that was 2 weeks early. and i've had severe breast and lower abdominal pain ever since the first period in july. im almost 20 years old and this has never happened before until recently. also i had an ectopic pregnancy in march of this year and had it dealt with in april of this year. could this be contributing to the pain im having now. and could i possibly be pregnant and not realize it. i have taken at least 6 pregnancy tests and they all come up negative. and i have also went to the health department and they gave me a test and it said the same thing. im at a loss for what to do and need some help.