I don't think abortion on demand implies that the fetus has the moral standing of a lintball. In fact, the fetus can have the moral standing of a full adult and abortions can still be justified. Its similar to a case where someone who is dying is hooked up to your bloodstream, because a supply of your blood is the only way to save him. I don't think you're obligated to continue allowing him to live off your blood, and I think the choice is yours alone.

With respect to the ads, I agree with firstfrost: they are likely to encourage people to get abortions earlier rather than later, and I consider that a good thing, not a bad thing. For that matter, I would go further and say that anyone who can be enticed into an abortion by a pretty ad is probably not ready to be a parent.