How close are you to your friend? Are you likely to stay friends? I only ask because I had the same situation. My number 1 pick for a girls name is my friend's little sister's name. I loved it as soon as I heard it. 12 years on, it's still my number 1 pick but I haven't seen my friend for 8 years. Talk to your friend and see what she thinks. She might feel honoured, especially if you make the effort to ask her opinion.

Good luck with your precious bundle!