Vintage gingham maxi dress size small

Vintage gingham maxi dress in a size small. Has two front iridescent decorative buttons and a tie in the back. The brand is Due Date which makes me think it’s meant to be maternity. Gingham is a dark blue with lighter blue. Very comfortable and easy to throw on and go. Tag is a size small but it fit me well as a Medium. Vintage, gingham, summer, spring, maxi, casual, comfortable, lightweight, maternity, loose, relaxed