Under the circumstances, it seems the simpler, more straightforward public health message would be to encourage women who aren’t actively trying to get pregnant to always have a birth control plan in place, even if you are not having sex right now. (After all, tomorrow is another day, one that might have Mr. Right or at least Mr. Sexy in it.) It doesn’t have to be something as intense as the pill or the IUD. A package of condoms always in your dresser drawer or a commitment to lesbianism works.
I guess it would work too.