Following up with your physician is important.
Next steps will also depend upon the outcome of your therapy.
Typically, physicians will look at your HCV RNA 6 months after completing therapy to determine if you have cleared the virus (achieved an SVR or sustained virologic response).
If you have an SVR - congratulations!
If you do not, then you will have to talk with you doctor about retreatment or waiting for a clinical trial for non-responders.
Having HCV Genotype 1 or 4 makes the virus more difficult to eradicate (and therefore ususally require longer therapy)
HCV genotype 2 or 3 is usually easier to treat and easier to clear (usually only 6 months of PegIFN and Ribavirin is required. Although, sometimes with HCV Genotype 3a there can be fat deposits in the liver making it more difficult to treat).
Best of luck on clearing the virus and achieving an SVR!