I am 39+5 today and have been having twinges on and off for about 2 weeks now. This morning I had a show (not bloody though, more snot-like - sorry 
) and throughout the day have had increasingly uncomfortabke back ache and braxton hicks. Over the last few days I have also felt quite a lot of discomfort when the baby moves (very low down) and this afternoon it is really quite painful, front and back. Sometimes it coincides with a BH, sometimes it doesn't - but the pain is much worse when it does.
Has anyone else had this? This is DC3 but I don't remember it from last time (DTs who were born at 35 weeks).