Today I gave in and pulled out my maternity jeans out for the first time in this pregnancy. Exactly 20 weeks (today). I can still get away with wearing most of my usual trousers as they are looser on me but my jeans have had it for the rest of my pregnancy. I reckon it won't be long before all my leggings come out again, although I wasn't pregnant in winter last time, maybe leggings will be too cold.
Quite pleased really, I forgot just how comfortable they were.