numerous posts and links on this issue...then maybe you'll be inclined to do your own "listening".
As for the extreme cases...I ask you...in one trimester's time...or two...how will you know for sure whether it was a violent rape...date rape...incest...or forced intercourse in marriage, not to mention the many other ways that "Unwanted Pregnancies" occur...will the rapist say "Yeah, you got me...I did it", or the relative say "I'm sorry...shouldn't have done that", or the husband say "I'll be more respectful....plus, I'll wear a condom next time"?
The obvious answer is that there's absolutely no way of establishing the man's guilt...and even if the offenders were identified, the woman still has a life changing pregnancy that is totally unwanted...it is no "Gift from God"...it is a biological "attack" on her that she should not have to...if she does not want to...carry to term...it must be her choice, only.
As the ND Grad said in a paper I linked before said..."So long as there are Unwanted Pregnancies...there will be abortions"...let's push for a) Access to Contraception for all women, b) much better Sex and Sexuality education...not just in schools, but for "Adults" as well, and c) Funded Programs throughout the country that enable women to bring "Unwanted Pregnancies" to term.