Sorry, I can stand for common sense pro-life conservatism. I cannot stand behind, or will I attempt to defend idiotic comments made by an idiot.
How exactly am I supposed to defend his statement? Please name the magical female mechanism that can discern a “legitimate” rape and thus block the sperm from reaching the egg inside her body?
Your straw-man argument aside (nobody said there was a magical mechanism that discerned rape), here is an answer to your question.
This is from Dr. John C. Wilkie, a medical doctor who is an obstetrician/gynecologist:
"... one of the most important reasons why a rape victim rarely gets pregnant, and that is psychic trauma. Every woman is aware that stress and emotional factors can alter her menstrual cycle. To get pregnant and stay pregnant, a woman’s body must produce a very sophisticated mix of hormones. Hormone production is controlled by a part of the brain which is easily influenced by emotions. There’s no greater emotional trauma that can be experienced by a woman than an assault rape. This can radically upset her possibility of ovulation, fertilization, implantation and even nurturing of a pregnancy. "
Link to quote by Dr. Wilkie.