Wanting3years's TTC after m/c Wish

I lost my first child to a miscarriage in 2003. I was then blessed with a beautiful baby girl in Aug. 2005 who decided to join our family 9 weeks early. We tried again for a while, I found out I was pregnant again in June 2007 but miscarried again in Aug. 2007. We have been trying to conceive again for a year with no luck yet. We so want to have another child.