Retha

Cheryl, about women having to marry their rapists: I think to be cared for is half the answer. But some other points probably are:
Compare to Exodus 22:16-17: A girl’s family could also decide not to force him to marriage, but to pay money for providing for her. (Some commenter’s say this money was the price of a house.)
He may not divorce, nothing said of what she may and may not do. Does this imply that even if she chooses to live somewhere else, he still has to provide and keep up all his responsibilities?

The original Hebrew word tabas is not the term for rape used in :25, and not all believe it refers to rape.
http://www.mandm.org.nz/2009/07/sunday-study-does-the-bible-teach-that-a-rape-victim-has-to-marry-her-rapist.html

About double as long uncleanness for female babies: Mara, that is also the impression my heart got when I asked that question of the Lord, with no influence from books or other Christians – double as much bonding time in a patriarchal culture.