I normally have my periods every 26 or 28 days, they are very heavy and normally last 5 or 6 days. My breast are always soar before the time, (usually my sign). The last 2 months my periods have been every 30 days only last for 2 days and one day heavy (but not as usual) and then the next day light and then its finished. This month it was also 30 days, and the first day was very heavy, then the next few days it was just drops (mostly when i needed to "pee"). It was also gone for 1 day completely then it showed up the next day, but also just slightly. My breasts are continuously soar, I have been nauseas, also headaches, back ache, and crave things I dont normally like, and feel sick from the smell of things i do normally like. What are my chances of being pregnant - I did a urine test before I had this last period but it was inconclusive, did not show anything (and no I did not do it incorrectly) I have done about 100 of them in the last 10 years. %-)