As Rachel Maddow pointed out last night, one argument for the ultrasound probes for women seeking early term abortions was (paraphrasing) "Something's already been up there or the women wouldn't be in this position. So why should they mind the probe going up there?"
"Twelve states already have unnecessary ultrasound laws on the books, and over a dozen more are being considered in state houses across the country. But the theory that legislators are peddling — that such laws might change a woman’s mind — ignore the simple fact that 90 percent of women feel very confident about their decision to get an abortion before seeing a doctor. A transvaginal ultrasound may cause a woman discomfort and cost her more money, but it’s unlikely to change her constitutionally-protected decision to get an abortion."
Or here is Maddow's segment if you prefer to watch your news: