It seems to depend where you are for maternity clothes in store.
There's a large town about 15 mins from us that has a few shops for maternity stuff in store there is H&M, mothercare, new look, debenhams so not loads but the newlook does stock a lot.
I've got 2x jeans from newlook and a few dresses. A couple of tops from H&M all not too grumpy. Still wearing river island leggings which I LOVE as they have almost like a bump band round the waist so they don't dig in.
As I'm having little man mid - may now I'm thinking I might not need much more as most of my clothes are non maternity, just in a bigger size and if it's hot then will just wear without all the extra layers.
Also I too have been really felt like I'm being kicked directly in the bladder at times! It's horrible! 