Ditto on what Diane and nygirl said.
Could you please expain "2-month course completed". I have never heard of a 2 month treatment. Are you saying that you have completed 2-months of your treatment?
Yes use two forms of birth control during and for after as the ribavirin does not leave your body quickly - it takes many months.
I hope you are planning on doing more than 2 months of tx, but yes, you can have sex with your wife. If she is of child bearing age you have to use 2 forms of birth control though because the drugs can cause really bad birth defects if she gets pregnant.