Early belly is normally bloating. You may even find you go back in yet. Lots of ladies within my belly buddies group found they "showed" early only to find it move back in a bit when they got further along, then it came back out again after the uterus rose out of the pelvis. As early as you are it's not possible for your uterus to be out so it's either bloating or movement of the uterus pushing your bowel & stomach out (not baby).