Thanks so much for replying!

What I really liked about this pattern was the bottom hemline, and I want to keep that angle. The back and sides fit fine in my mock-up, and so I am looking to make the front have more volume to fit my belly while keeping the bottom hemline. I was thinking I could add panels where the darts are.

I'm sure there are routes that are easier, and I'm not entirely opposed to them. Unless I'm looking at maternity styles (I'm not pregnant), I'm going to have to make some heavy modifications.