Keep up hope. My husband and I were in the same boat. We had a very early miscarriage the first month we tried, then it took a year to get pregnant again and now we have a little boy who was just born. We got pregnant the month we visited the doctor to start the infertility w/u. I was in my first year in med school, so stress probably played a role as well. Like 'English' said, you did conceive once, which is a good sign. One month at a time - I know it's difficult to get so many negatives before the big positive.