Most people think that pills are a good way to avoid abortion, not an equivalent, and I think that would be a tough sell. I'm not sure how you would prevent a woman from getting a prescription that a doctor has given her, or how you would know which women they are.
Most people I know who used birth control pills did not realize they could be killing their own child. If more people knew the truth about birth control pills the might choose other forms of birth control. They should have a warning in big print that birth control pills also worth after conception and may lead to an unwanted abortion.
There are so many choices in birth control these days that do not act after conception, there is no excuse for using the "pill" if you already know it act after conception.