So, you’re due and you are fairly certain it’s a girl. Congratulations!
Having said that, you have already picked out Autumn for her first name. You also have a couple of good middle names but you’re open to more ideas.
Don’t worry, there are lots of them that go with Autumn.
I combed names’ forums and databases and compiled the ones that I believe pair nicely with her. Here a list of beautiful middle names for Autumn.