They were about £22 and I thought "Bargain" - stretchy, goes right over your bump, and comfy.
Only problem is - they don't wash well... Been worn for 4 weeks or so, and washed about 4 times (not many trousers that fit, so unless they've been slimed or spilt on, they are worn!), and they are already going bobbly all over
Just a warning to anyone wanting them to last through a working pregnancy - I think they'll look quite manky quite quickly.