I'm 36+1 and this afternoon at work I suddenly felt a damp patch in my underwear. I've had fairly heavy discharge all throughout my pregnancy, but this was thin like water. My discharge is normally white - sorry for the TMI! 
It doesn't seem to have gotten worse but am sat in my pyjamas and still feels fairly moist IYSWIM 
Have been getting BH for the last couple of weeks and crampy pains on and off over the last couple of days. Last night when I was in bed lying down my bump also felt like it went soft when it's normally hard. Is it just my body preparing me for labour? How do I know if I'm leaking fluid?
My bump is still high and baby still feels high apart from the odd moment of pressure I get now and then.