taking accutane (isotretinoin) and wife has gotten pregnant. Is there any risk?

I am on my 5th month of taking accutane and I have gotten my wife pregnant. Are there ANY chances that there could be issues or problems with the pregnancy relating directly to me being on accutane while conceiving a child? I know there are serious risks if she was taking the drug and was to become pregnant, but it was me (the father) on the medication. Also, if we stay sexually active, can I pass the medication to the unborn fetus through my semen?