Absolutely none whatsoever.

Edit: Confound these Lesswrongers, they drive me to research.

Anyways, to make a brief attempt using data from here, it seems that I was either overestimating p(oops|pill) or underestimating p(oops|condom). Of course, the hypothetical pragmatic pro-lifer really should be advocating for Dreaded_Anomaly's suggested methods as opposed to free pills.

Still, I give substantially more credence to the statement:

This intervention would cause a decrease in abortion.

(Note: I was not giving much credence to begin with.)