Early morning hard stomache

Every time I wake up I wake up to my lower stomache where baby, hard and almost like in a ball . I’ve been reading about Braxton Hicks though it’s my first pregnancy idk if it is that . It happens in the morning every day and then through out the day even when I’ve just been laying down all day . I’m 16 w 3 d and haven’t felt any movement other than whatever this is ? It is not painful at all just curious what I’m feeling