Hi, Thanks for the query. In case of regular menstrual cycles, the possibility of pregnancy is less. Because usually ovulation will not occur one day before expected menstruation incase of regular periods. Increased vaginal discharge, pain abdomen etc may indicate pelvic infection. Gastrointestinal disturbances can also cause increased white discharge sometimes. So, if the symptoms persist consult gynecologist once and get examined. In case of pelvic infection, you may need one course of antibiotics. If diarrhea persists, take antidiarrheal drugs and antibiotics with your doctor s advice. If you do not get periods even one week after expected date of periods, once go for urine pregnancy test. Take care.