Exactly. Birth control pills work by changing a woman's hormones. That can have a lot of other endocrinological effects. They're a prescribed drug for a reason. The GOP is just showing how it's perennially Stuck On Stupid by thinking they can "out Democrat" the Democrats. Medicare Part D, anyone?
And from where did this whole mythology originate, that there's somehow this great difficulty for women in 21st century America to obtain birth control pills? As far as I can tell, it wasn't an issue until George Stephanopolous threw that planted question at Romney. That was nothing more than prepping the battlefield for the whole Sandra Fluke thing that came later. Meanwhile the pill has been around since the early 1960s and generations of women have used it, apparently without any great difficulty. But now, suddenly, it's the new suffragette movement?