I'm 37 weeks pregnant exactly and for the last few days I've had constant stomach cramps. They are not necessarily painful but just really dull aches that are there in the background, sometimes will disappear for a few hours but always return. I'm not sure if it's practise contractions or not because my bump doesn't go hard and I've had no other signs of labour! Can still feel baby elbowing me and hiccuping. Does anyone know what the cause of this could be??