I had my period last month on the 20th , it was lighter than usual . From then on I have had bad stomache pains & my breast are just now starting to feel sore around the nipple area . (tender to the touch) {today's date,9-12-2011} im waiting on the 20th of this month too see if I miss my period . If so , should I take a test or go to the doctor . Am I pregnany ?