Dan Colman provides background:

Eventually translated into 25 languages, the film avoids anything sexually explicit. The family planning advice is vague at best and, perversely but not surprisingly, only male characters get a real voice in the production. But lest you think that Disney was breaking any real ground here, let me remind you of its more daring foray into sex-ed films two decades prior. That’s when it produced The Story of Menstruation (1946), a more substantive film shown to 105 million students across the US.

The Story of Menstruation is after the jump: