I just wanted to let you know about an alternative way to find maternity clothes, since the high street shops rarely seem to stock them any more and most of it is now online (and expensive!)
I recently took over a Facebook buy/sell group in my town specifically for maternity (and nursing) wear. I never thought of looking on Facebook while I was actually pregnant but I wish I had done! It might have saved me a fair bit of stress, especially when I got too big for my first set of clothes and had to fork out for even more about six weeks before I was due.
Anyway, might be worth checking to see if there is a group near you. Mine is based in Colchester, but tbh many sellers are happy to post so feel free to join wherever you are in the country. It's here if you are interested: https://m.facebook.com/groups/1446316035640383?ref=bookmarks
(sorry I have no idea how to do clicky links on my phone!)