It's a girl!

My husband was home on leave and we found out we are going to have a little girl but we both wanted a boy so bad, since we already have a girl, we didn't think of any girl names and we can't think of any. We want a name that either starts with a J or an A and our first daughters name is Alyssa so something other than that. We want something that's not too common but not too unique. So if you can think of any, the ideas would help us out a lot!!! Thanks. (: