Annunciation implications for feminism

As I've been reading around on the topic of the annunciation I have profoundly moved by the following two articles:

http://www.desiringgod.org/ResourceLibrary/TopicIndex/47_Abortion/3528_The_Baby_in_My_Womb_Leaped_for_Joy/

http://julieclawson.com/2010/03/25/silence-women-and-the-annunciation/

Genuinely thought-provoking on two fronts:

1. Is the annunciation implicitly stating that women are just vessels? Is there something overtly rape-like with God's activity here?
2. To what extent do the texts concerning Jesus (and JtB) in the womb stand as pro-life texts? The John Piper article has a fantastic reference to The Didache!

I'm certainly warming to the idea that churches should speak out more on the matter of life choices.