*iz excited* I'll just direct you here:

http://community.livejournal.com/buffyversetop5/202865.html

The stories listed by missmurchison and msclawdia are delightful, and very different from each other. Have fun.

P.S. Sorry. For some reason, I thought that the mpreg idea had somehow grabbed you against your will and demanded to be told. I'm projecting, as usual.