Jojo Maman Bébé Women's Maternity Stretch Skinny Jeans - L - Black - Available at M&S

These super-stretchy cotton-rich jeans from JoJo Maman Bébé are designed to flex with your body as it changes through pregnancy. They're made in a skinny fit, with a comfortable jersey waistband that can worn under or over your bump. Five-pocket styling gives that classic denim look.