When was the last time your husband was tested, if it was 6 months to a year after the end of treatment and he was was still SVR (cured-negative for hep c virus) then the chance of it returning are very, very low, maybe 1% so I wouldn't worry about it.
As far as your situation if you are negative and your husband is still negative then your chance of contracting HCV is the same as the rest of the world.
If your husband was still undected 6 months after treatment then he is good. Once its gone its gone and the only way it returns is to be reinfected.
Unless you have risk factors yearly testing is not needed, you don't inherit HCV. The only way to get it is blood to blood... Don't worry about it and enjoy.........