Trying again and scared

Hi everyone! My Fiance and i are trying to get pregnant and stay pregnant. We had our first son in 2009 and i went off birth control two years ago. I have had two miscarriages since september 2015. Im scared but also hopeful, my cousin had the same problem and finally has been able to successfully stay pregnant, after four miscarriages. I want another baby more than anything, but i dont know if im strong enough to go through another miscarriage..... keep me in your prayers please💒