I'm 29 weeks & since about 23 weeks the baby has had his own little routine for kicking and has stuck to it vigilantly up until 4 days ago .
He would wake up and kick for an hour at 10am & then throughout the day I would feel the odd kick/movement & then he would wake for an hour again at 11pm every night you could set your watch by him .
I still feel him moving & if I haven't for a while I just need to give him a quick prod and he will kick back he just doesn't seem to have his routine anymore 
I'm not sure wether I should be concerned or not because I can still feel him move every so often .