There are very small risks associated with passing on hep C through sex. The greatest possibility would be having sex while your wife is on her period. Remember that it is a blood-borne disease and has to be passed through blood to blood or to an opening or sore or cut, etc. To be positive you won't pass it on, use condoms. Speak to your doctor about this subject as he may have more or different information.
Congratulations and hugs,
I agree, Hepmom. However, I recommend it as an option for anyone who is overly concerned about the possibility of either spreading or contracting it...for peace of mind, basically. I personally have never required that my partner use condoms in the 18 yrs. since my diagnosis.