I tried this on today, going to buy it later when I have my £5 voucher on me.
Its not maternity, but I'm 7 months pregnant am normally 12-14 and the size 14 looks good. Fully lined & stretchy.
Just to share...
www.clothingattesco.com/all-dresses/f+f-spot-print-slinky-tie-side-dress/invt/bd212227/&bklist=icat,4,shop,catgwomens,womens-dresses