It's not maternity but it has an elastic waistband.
Wool Jersey Skirt
A wool-blend brings warmth to this full skirt, while its elastic waistband makes comfort a top priority. Pair it with scoopneck tops and fluffy sweaters to update your look.
that may work..although I've found that some of my pre-maternity elastic band stuff (i.e. my jersey gauchos) are not quite as comfy as the stuff that is made specifically for maternity.
yeah it could for a little while, but when your bump gets a lot bigger, you'll have to pull the elastic part above it (because as ayo said, it gets uncomfortable) and then it might not look so great to have the front of the skirt a lot shorter than the back.