Which has always made me wonder about females and such a healing factor in the realm of realistic theory. I'm not going to comment on the current writing as seriously, I'm going to let the writers do their thing.
When you look into what pregnancy really is, and how human immune system is in reality, she'd never be able to get pregnant because the fetus is considered a foreign entity to be removed. The amount her healing factor would have to turn off for her to keep said child would probably kill her because of the adamantine poisoning.
Secondly... I'd think there would be constant repair of the hymen as well, which would make sex... I'll just say interesting.