I'm trying to get pregnant?.....?

I am trying for a little one. I am a 19 year old lesbian. My partner is 21. We are ready for a child together and I'm gonna be the one carrying. What is the best way to do this? This may sound weird but we do have a friend who'd be willing to get me pregnant... And he's very good looking. Or should we go the more general route of getting a sperm donor..