Merlin from Disney's "The Sword in the Stone" is pro-choice.
Merlin is happily child-free. He respect people who want kids and he's a good teacher for Arthur, yet he believes that being a parent should always be a choice.
Gaius from Merlin is pro-choice. As the Court Physician of Camelot, he tried to help many, many people who had painful, dangerous pregnancies, died in childbirth or slowly starved to death with their many unwanted children. He believes it's OK when people want big families, and he also believes it's OK when they don't.