Where can I try on a good range of Maternity gear?

[Clementine19]

If this pregnancy sticks then I am determined not to live in bobbly leggings and ill-fitting eBayed clothing this time around.
This is probably my last pregnancy and I am determined to look half-decent and to be comfortable!
Can anyone recommend high street shops that tend to stock a good range of Maternity gear?
I seem to remember H&M were ok years ago, but Dorothy Perkin’s had next to nothing and it wasn’t the best fit.
Any recommendations?

Red Herring @ Debenhams have some good maternity basics. I liked their jeans. H&M are good as pp have said.

Matalan and Red Herring added to my list, thank you😊

I ordered online with Next click and collect, tried on in store and returned unwanted stuff straight away.