Next with right sides together pin and sew along the sides of the skirt using a straight stitch.
Now take your two waist band pieces and sew together at the sides using a zig zag stitch for stretch. This will create a circle.
Fold your circle in half with wrong sides together to make a thick circle.
Place the circle over the top of the skirt body with the skirt body wrong side out. Pin in place matching up the side seams. All the raw edges should be matched up.
Sew using a zig zag stitch all around the top. You could also use elastic thread for extra stretch (like in my case to make room for an expanding belly).