Hi, may I answer your health queries right now ? Please type your query here...I really never used to log the days of my menstrual cycle beginning and end until I recently started having scares about possibly being pregnant so I realized how important it was. I only started in Feb of this year, so I only know that my last cycle was 27 days long. I was expecting my period about 3 to 4 days ago just because I expect it about the same date of each month and because I got it March 9, I expected it April 9 or 10, somewhere around that time. However, I calculated that I should have gotten it around April 4 or 5 for it to be around the 27 day cycle. Anyway, I still have not got my period yet and I really don t feel like I will. I usually have some symptoms that I am not feeling. About a week and a half or so ago I felt one symptom and thought my period would arrive in about a week or less, it never came. I have been sexually active, it was anal sex, but we do not use any contraceptives when we do that. I am 19 years old. I took a pregnancy test about 3 days ago and it was negative, but I am still worried since this is a complicated subject and I am sure that I could have received a false negative for many reasons. Should I just not worry? Is this normal?