Rape of males (as with Sandusky or Dahmer) seldom results in pregnancy.
Rape of premenarche girls seldom results in pregnancy.
Rape of post menopausal females seldom results in pregnancy.
Anal rape seldom results in pregnancy.
Oral rape seldom results in pregnancy.
Women with hysterectomies or full tubal ligations don't tend to get pregnant from rape.
If you compile the statistics lumping all victims of rape together rather than strictly healthy women of child bearing age experiencing penile vaginal rape...then yes, you can artificially create the perception that rape is less likely to produce a pregnancy than other intercourse.
It will be a lie, of course, but you can interject it and hope nobody calls you on it.
I can find a doctor who will tell you that whatever herbal concoction I want them to endorse causes men to grow bigger genitals and women to grow larger busts. If you don't look at the underlying methodology well...
You've got a lot of vagaries in your comment.
I think we can put 'never' in that sentence.