Thank you for reading my entry. I am becoming concerned. Situation: I am a married, healthy, normal weight, 38-year old white female, take no medications, gravida 3, para 3. I have always been very regular (exact 28 day cycle) with my menstrual period, and I take good care to keep accurate records of my cycles. I am now 9 days late. I have taken a pregnancy test that came back negative. I have no physical signs or symptoms of complaint, nothing abnormal physically. Do you have any advice for what could be the cause, and should I be worried?