I have had one miscarriage and one full term pregnancy. I have a four year old daughter, and if I am pregnant, it would be considered a joyous occasion. I was supposed to start my period on August 5th of 2009, and am now 20 days late. I have taken three pregnancy tests, with the last one three days ago, and they've all said "negative". I am really worried that it is going to result in another miscarriage since I read somewhere that women that have had previous miscarriages are 25% more likely to have another one, and for the simple fact that all 3 tests came back negative (each time I ised three different brands of hp tests) my concern lies in the welfare of the fetus (if in fact there is one growing inside of me) that it might be an ectopic pregnancy. I have no insurance, and am going to go to Birthright in Houston next week, on the 4th or 5th of Sept to get a bloodwork test/urine screen to see if I am pregnant. I will post the results. Also, my cycle is every 30 days and lasts 3-4 days in lenght, and it comes every month like clockwork ever since I had my child, four years ago. So this, me being 20 almost 3 weeks late, has never happened before. Also, when I got pregnant with my 4 year old, I took a test the first day I was late, and it came back positive within 1 minute. Has anyone else ever gone through this?