Dull coming and going pain in lower right stomach and hurts when stretched and dull numbing pain in right leg that comes and go and 16 weeks pregnant.

Round ligament: The round ligaments are on the sides of the uterus and are stretched as the uterus grows. This stretching of the ligament can cause pain especially when you move. This is a common complaint during pregnancy. The high progesterone levels of pregnancy also make joints less stable and in your back this can cause some pressure on or stretching of nerves resulting in pains or numbness that come and go