No, they didn’t, for two reasons:
1) I don’t compare the Holocaust to abortion based on Nazi policies directing who could and who could not kill their unborn children. I compare the IDEOLOGY that drove the Nazi belief that certain categories of human beings could be killed because they defined them as something less than a person and unworthy of life. This is EXACTLY how the pro-choice movement categorizes unborn children and the result has been the continuous mass slaughter of these people.
2) Even if I did compare based on the policies of the Nazis toward abortion, it would be a valid comparison. Although the Nazis did not allow German women to abort, they did actively encourage non-Aryans to abort. You know, so they would have less post-born people to kill later.