Thanks very much for all your replies and experiences. I'm feeling much better about it, I was worried there for a while! It's great to hear some of you waited over a month (well great for me anyway LOL). Sarah, you must have lost yours around the same gestation as me...hopefully that's a good sign for a quick labour.

Alan, thanks very much for your advice (again ). I'm trying to take it easy as much as I can whilst school holidays are on, but I'm not lifting anything or doing too much physical other than housework.