ishade... it is so incredibly difficult, I know. I have not been trying as long as you, but I too lost a pregnancy.
I was early on as well, only about 5 weeks. What you and I experienced is called a chemical pregnancy. An egg was fertilized, and implanted for only a short time giving off enough HcG to make a test positive. This is actually a very common occurance. I urge you to do a google search about it on the inernet so you can get more information.
I think the first step for me was realizing that it was real, and my DH and I needed to mourn in a way we saw fit. We have continued to try with no luck yet, but I keep going because I know it will happen again. You just have to pray and stay positive.
Please don't give up

We are all here for you everyday. Maybe it will be good for you to take a month off. I took 3 months ttc off actually and I came back to it feeling completly refreshed and ready! I know everyone is different...but this is what worked for me.
I am praying for you