How medieval an ideology that a woman should be forced to carry to term - and give birth to - a child she conceived through rape.
Force being the operative word here. After being forced into sexual intercourse, she's then forced into motherhood. If she can't prevent the first scenario, she should at least have some say in the second one.
I personally wouldn't want an eternal reminder of such a horrible event, and doubt I could ever look at my child and NOT see their origin story.