You'll want to compare it again. They do not look the same to us ... not even close. For instance I marked in Yellow the "doubling" parts of the coin, or the seams of the doubling. These "seams" do not exist in your photo of your cent.
Why would you compare an 1969-S DDO to a 1969-D coin? http://www.varietyvista.com/01b LC Doubled Dies Vol 2/1969DDDO001.htm