Thanks for the query.Rh negative blood group
problem only occurs when the woman is having Rh negative factor and her husband is having Rh positive factor.
As your wife's blood group is O+ve, you people will not face this problem.
So no need to worry about it.
Hope I have answered your query. I will be available to answer your follow up queries. If you are satisfied with all my answer, please rate the answer after closing the discussion.