Babies have preffered times to move around. And even though you cant feel it your little one probably just moves in the right position, after a long day, it just hurts.
Oh thank God lol, but why only at night time? Lol
Ohh, your body is just getting used to that littke one growing , and sitting there moving everything around. As long as its just that, and no bright red blood, though spotting in Brown (dried blood) is okay just plantation bleeding. ((: